v4, beta5 (#20 )

Reviewed-on: #20
v4, beta4 (#19 )
2026-06-30 02:03:15 +00:00 · 2026-06-15 01:07:38 +00:00 · 2026-03-22 22:21:22 +00:00 · 2026-01-07 11:37:26 +00:00
23 changed files with 2308 additions and 854 deletions
@@ -10,11 +10,11 @@ htmx uses attributes and HTTP headers to attain its interactivity; the libraries
 `Giraffe.Htmx` provides extensions that facilitate using htmx on the server side, primarily reading and setting headers. `Giraffe.ViewEngine.Htmx` provides attributes and helpers to produce views that utilize htmx. Both can be installed from NuGet via standard methods.
-| Server Side | View Engine |
+| Server Side                                                                                                            | View Engine                                                                                                                                  |
-|---|---|
+|------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------|
-|[![Nuget](https://img.shields.io/nuget/v/Giraffe.Htmx?style=plastic)](https://www.nuget.org/packages/Giraffe.Htmx/)|[![Nuget](https://img.shields.io/nuget/v/Giraffe.ViewEngine.Htmx?style=plastic)](https://www.nuget.org/packages/Giraffe.ViewEngine.Htmx/)|
+| [![Nuget](https://img.shields.io/nuget/vpre/Giraffe.Htmx?style=plastic)](https://www.nuget.org/packages/Giraffe.Htmx/) | [![Nuget](https://img.shields.io/nuget/vpre/Giraffe.ViewEngine.Htmx?style=plastic)](https://www.nuget.org/packages/Giraffe.ViewEngine.Htmx/) |
-Both of these packages will also install `Giraffe.Htmx.Common`, which has some common definitions and provides a local-to-your-project version of the htmx JavaScript _(as of v2.0.8)_.
+Both of these packages will also install `Giraffe.Htmx.Common`, which has some common definitions and provides a local-to-your-project version of the htmx JavaScript _(as of v2.0.8)_ and htmax htmx-plus-extensions bundle _(as of v4.0.0-beta4)_.
 ## Server Side (`Giraffe.Htmx`)
@@ -74,7 +74,7 @@ If you want to use the package-provided htmx library, `Htmx.Script.local` will c
 ## Feedback / Help
-The author hangs out in the #dotnet-htmx channel (and most others) of the [htmx Discord server](https://htmx.org/discord) and the #web channel of the [F# Software Foundation's Slack server](https://fsharp.org/guides/slack/).
+The author hangs out in the #dotnet-htmx channel (and most others) of the [htmx Discord server](https://htmx.org/discord) and the #web channel (and most others) of the [F# Community Discord server](https://discord.gg/R6n7c54).
 ## Thanks
 |[<img src="https://giraffe.wiki/giraffe.png" alt="Giraffe logo" width="200">](https://giraffe.wiki)| [<img src="https://bitbadger.solutions/upload/bit-badger/2024/01/htmx-black-transparent.svg" alt="htmx logo" width="200">](https://htmx.org) |[<img src="https://resources.jetbrains.com/storage/products/company/brand/logos/jb_beam.png" alt="JetBrains Logo (Main)" width="200">](https://jb.gg/OpenSource)|
@@ -3,10 +3,15 @@
 module Giraffe.Htmx.Common
 /// <summary>The version of htmx embedded in the package</summary>
-let HtmxVersion = "2.0.8"
+let HtmxVersion = "4.0.0-beta5"
-/// <summary>The path for the provided htmx script</summary>
+/// <summary>URLs for the included htmx library static web assets</summary>
-let internal htmxLocalScript = $"/_content/Giraffe.Htmx.Common/htmx.min.js?ver={HtmxVersion}"
+module StaticAssetUrl =
    /// <summary>The path for the provided htmx script</summary>
    let htmx = $"/_content/Giraffe.Htmx.Common/htmx.min.js?ver={HtmxVersion}"
    /// <summary>The path for the provided htmax script</summary>
    let htmax = $"/_content/Giraffe.Htmx.Common/htmax.min.js?ver={HtmxVersion}"
 /// <summary>Serialize a list of key/value pairs to JSON (very rudimentary)</summary>
 /// <param name="pairs">The key/value pairs to be serialized to JSON</param>
@@ -25,8 +30,8 @@ let internal toLowerBool (boolValue: bool) =
 /// <summary>Valid values for the <c>hx-swap</c> attribute / <c>HX-Reswap</c> header</summary>
-/// <remarks>May be combined with <c>swap</c> / <c>settle</c> / <c>scroll</c> / <c>show</c> config)</remarks>
+/// <remarks>May be combined with <c>swap</c> / <c>scroll</c> / <c>show</c> config)</remarks>
-/// <seealso href="https://htmx.org/attributes/hx-swap/">Documentation</seealso>
+/// <seealso href="https://four.htmx.org/attributes/hx-swap/">Documentation</seealso>
 [<RequireQualifiedAccess>]
 module HxSwap =
@@ -38,22 +43,71 @@ module HxSwap =
    [<Literal>]
    let OuterHtml = "outerHTML"
    /// <summary>Morph the inner HTML of the target to the new content</summary>
    [<Literal>]
    let InnerMorph = "innerMorph"
    /// <summary>Morph the outer HTML of the target to the new content</summary>
    [<Literal>]
    let OuterMorph = "outerMorph"
    /// <summary>Morph the outer HTML of the target to the new content, recreating all children</summary>
    /// <remarks>This is used internally by the new history extension, but can be used by others if desired</remarks>
    [<Literal>]
    let OuterSync = "outerSync"
    /// <summary>Replace the text content of the target without parsing the response as HTML</summary>
    [<Literal>]
    let TextContent = "textContent"
    /// <summary>Insert the response before the target element</summary>
    [<Literal>]
-    let BeforeBegin = "beforebegin"
+    let Before = "before"
    /// <summary>Insert the response before the target element (pre-v4 name)</summary>
    [<Literal>]
    let BeforeBegin = Before
    /// <summary>Insert the response before the first child of the target element</summary>
    [<Literal>]
-    let AfterBegin = "afterbegin"
+    let Prepend = "prepend"
    /// <summary>Insert the response before the first child of the target element (pre-v4 name)</summary>
    [<Literal>]
    let AfterBegin = Prepend
    /// <summary>Insert the response after the last child of the target element</summary>
    [<Literal>]
-    let BeforeEnd = "beforeend"
+    let Append = "append"
    /// <summary>Insert the response after the last child of the target element (pre-v4 name)</summary>
    [<Literal>]
    let BeforeEnd = Append
    /// <summary>Insert the response after the target element</summary>
    [<Literal>]
-    let AfterEnd = "afterend"
+    let After = "after"
-    /// <summary>Does not append content from response (out of band items will still be processed).</summary>
+    /// <summary>Insert the response after the target element (pre-v4 name)</summary>
    [<Literal>]
    let AfterEnd = After
    /// <summary>Delete the target element regardless of response</summary>
    [<Literal>]
    let Delete = "delete"
    /// <summary>Does not append content from response (out of band items will still be processed)</summary>
    [<Literal>]
    let None = "none"
    /// <summary>Update existing elements by <c>id</c> and add new ones</summary>
    /// <remarks>This requires the <c>upsert</c> extension</remarks>
    /// <seealso href="https://four.htmx.org/extensions/upsert">Extension</seealso>
    [<Literal>]
    let Upsert = "upsert"
    /// <summary>Specify that the target of the htmx request should be downloaded</summary>
    /// <remarks>This requires the <c>hx-download</c> extension (included in the htmax bundle)</remarks>
    /// <seealso href="https://four.htmx.org/extensions/hx-download#explicit-swap-style">Documentation</seealso>
    [<Literal>]
    let Download = "download"
@@ -14,7 +14,7 @@
  </ItemGroup>
  <ItemGroup>
-    <PackageReference Update="FSharp.Core" Version="6.0.0" />
+    <PackageReference Include="FSharp.Core" />
  </ItemGroup>
  <ItemGroup>
@@ -1,5 +1,7 @@
 ## Giraffe.Htmx.Common
-This package contains common code shared between [`Giraffe.Htmx`](https://www.nuget.org/packages/Giraffe.Htmx) and [`Giraffe.ViewEngine.Htmx`](https://www.nuget.org/packages/Giraffe.ViewEngine.Htmx), and will be automatically installed when you install either one. It also contains htmx as a static web asset, allowing it to be loaded from your local (or published) project.
+This package contains common code shared between [`Giraffe.Htmx`](https://www.nuget.org/packages/Giraffe.Htmx) and [`Giraffe.ViewEngine.Htmx`](https://www.nuget.org/packages/Giraffe.ViewEngine.Htmx), and will be automatically installed when you install either one. It also contains htmx and htmax as static web assets, allowing them to be loaded from your local (or published) project.
-**htmx version: 2.0.8**
+**htmx version: 4.0.0-beta5**
 _**NOTE:** Pay special attention to breaking changes highlighted in the packages listed above._
@@ -2,16 +2,17 @@
 <Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
    <PropertyGroup>
        <TargetFrameworks>net8.0;net9.0;net10.0</TargetFrameworks>
-        <VersionPrefix>2.0.8</VersionPrefix>
+        <VersionPrefix>4.0.0</VersionPrefix>
        <VersionSuffix>beta5</VersionSuffix>
        <GenerateDocumentationFile>true</GenerateDocumentationFile>
-        <PackageReleaseNotes>- Adds package-provided script (available via Giraffe.Htmx.Common); use app.MapStaticAssets() for publish support, use builder.UseStaticWebAssets() for non-development/non-published execution
+        <PackageReleaseNotes>Update htmx 4 to beta5
- [View Engine] Deprecates Script.minified and Script.unminified (use Script.cdnMinified and Script.cdnUnminified instead)
+- [Common] Update provided htmx/htmax 4 to 4.0.0-beta5
- Updates script tags to pull htmx 2.0.8 (no header or attribute changes)
+- [Common] Add StaticAssetUrl module with static asset paths for htmx and htmax
- Adds .NET 10 support
+- [Server] Unobsolete HX-Prompt header, note that it requires hx-prompt extension
 - [View Engine] Unobsolete hx-prompt attribute, note that it requires hx-prompt extension
 - [View Engine] Updated CDN script tags to pull htmx / htmax 4.0.0-beta5
-See full release notes, including more info about the package-provided script, at https://git.bitbadger.solutions/bit-badger/Giraffe.Htmx/releases/tag/v2.0.8
+See package and prior alpha release READMEs; v2 to v4 is not an update-and-forget-it release
 NOTE: As of 2.0.6, the CDN for htmx changed from unpkg.com to cdn.jsdelivr.net; sites with Content-Security-Policy headers will want to update their allowed script-src domains accordingly
        </PackageReleaseNotes>
        <Authors>danieljsummers</Authors>
        <Company>Bit Badger Solutions</Company>
@@ -0,0 +1,13 @@
 <Project>
  <PropertyGroup>
    <ManagePackageVersionsCentrally>true</ManagePackageVersionsCentrally>
  </PropertyGroup>
  <ItemGroup>
    <PackageVersion Include="Expecto" Version="11.0.0" />
    <PackageVersion Include="Giraffe" Version="8.2.0" />
    <PackageVersion Include="Giraffe.ViewEngine" Version="1.4.0" />
    <PackageVersion Include="NSubstitute" Version="5.3.0" />
    <PackageVersion Include="FSharp.Core" Version="10.1.301" />
    <!-- <PackageVersion Update="FSharp.Core" Version="10.0.0" /> -->
  </ItemGroup>
 </Project>
@@ -1,40 +0,0 @@
 Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio Version 16
 VisualStudioVersion = 16.0.30114.105
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{F2A71F9B-5D33-465A-A702-920D77279786}") = "Giraffe.Htmx", "Htmx\Giraffe.Htmx.fsproj", "{8AB3085C-5236-485A-8565-A09106E72E1E}"
 EndProject
 Project("{F2A71F9B-5D33-465A-A702-920D77279786}") = "Giraffe.ViewEngine.Htmx", "ViewEngine.Htmx\Giraffe.ViewEngine.Htmx.fsproj", "{F718B3C1-EE01-4F04-ABCE-BF2AE700FDA9}"
 EndProject
 Project("{F2A71F9B-5D33-465A-A702-920D77279786}") = "Giraffe.Htmx.Common", "Common\Giraffe.Htmx.Common.fsproj", "{75D66845-F93A-4463-AD29-A8B16E4D4BA9}"
 EndProject
 Project("{F2A71F9B-5D33-465A-A702-920D77279786}") = "Tests", "Tests\Tests.fsproj", "{39823773-4311-4E79-9CA0-F9DDC40CAF6A}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
 		Release|Any CPU = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
 	EndGlobalSection
 	GlobalSection(ProjectConfigurationPlatforms) = postSolution
 		{8AB3085C-5236-485A-8565-A09106E72E1E}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{8AB3085C-5236-485A-8565-A09106E72E1E}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{8AB3085C-5236-485A-8565-A09106E72E1E}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{8AB3085C-5236-485A-8565-A09106E72E1E}.Release|Any CPU.Build.0 = Release|Any CPU
 		{F718B3C1-EE01-4F04-ABCE-BF2AE700FDA9}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{F718B3C1-EE01-4F04-ABCE-BF2AE700FDA9}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{F718B3C1-EE01-4F04-ABCE-BF2AE700FDA9}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{F718B3C1-EE01-4F04-ABCE-BF2AE700FDA9}.Release|Any CPU.Build.0 = Release|Any CPU
 		{75D66845-F93A-4463-AD29-A8B16E4D4BA9}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{75D66845-F93A-4463-AD29-A8B16E4D4BA9}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{75D66845-F93A-4463-AD29-A8B16E4D4BA9}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{75D66845-F93A-4463-AD29-A8B16E4D4BA9}.Release|Any CPU.Build.0 = Release|Any CPU
 		{39823773-4311-4E79-9CA0-F9DDC40CAF6A}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{39823773-4311-4E79-9CA0-F9DDC40CAF6A}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{39823773-4311-4E79-9CA0-F9DDC40CAF6A}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{39823773-4311-4E79-9CA0-F9DDC40CAF6A}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 EndGlobal
@@ -0,0 +1,6 @@
 <Solution>
  <Project Path="Common/Giraffe.Htmx.Common.fsproj" />
  <Project Path="Htmx/Giraffe.Htmx.fsproj" />
  <Project Path="Tests/Tests.fsproj" />
  <Project Path="ViewEngine.Htmx/Giraffe.ViewEngine.Htmx.fsproj" />
 </Solution>
@@ -14,8 +14,8 @@
  </ItemGroup>
  <ItemGroup>
-    <PackageReference Include="Giraffe" Version="6.4.0" />
+    <PackageReference Include="Giraffe" />
-    <PackageReference Update="FSharp.Core" Version="6.0.0" />
+    <PackageReference Include="FSharp.Core" />
  </ItemGroup>
  <ItemGroup>
@@ -4,6 +4,14 @@ open Microsoft.AspNetCore.Http
 open Microsoft.Extensions.Primitives
 open System
 /// <summary>The request types which may be set in the <c>HX-Request</c> header</summary>
 type HxRequestTypes =
    /// <summary>A request targeting the <c>body</c> tag or using an <c>hx-select</c> attribute</summary>
    | HxFullRequest
    /// <summary>A request for partial content</summary>
    | HxPartialRequest
 /// Determine if the given header is present
 let private hdr (headers : IHeaderDictionary) hdr =
    match headers[hdr] with it when it = StringValues.Empty -> None | it -> Some it[0]
@@ -23,7 +31,13 @@ type IHeaderDictionary with
    member this.HxHistoryRestoreRequest
        with get () = hdr this "HX-History-Restore-Request" |> Option.map bool.Parse
    /// <summary><c>true</c> if the request has been fired by the preload extension</summary>
    /// <remarks><c>preload</c> is part of the htmax htmx-plus-extensions bundle</remarks>
    member this.HxPreloaded
        with get () = hdr this "HX-Preloaded" |> Option.map bool.Parse
    /// <summary>The user response to an <c>hx-prompt</c></summary>
    /// <remarks><b>NEW IN v4:</b> This functionality is dependent on the hx-prompt extension being loaded</remarks>
    member this.HxPrompt
        with get () = hdr this "HX-Prompt"
@@ -31,15 +45,59 @@ type IHeaderDictionary with
    member this.HxRequest
        with get () = hdr this "HX-Request" |> Option.map bool.Parse
    /// <summary>The ID of the request (WebSocket extension requests only)</summary>
    /// <remarks><c>hx-ws</c> is part of the htmax htmx-plus-extensions bundle</remarks>
    member this.HxRequestId
        with get () = hdr this "HX-Request-ID"
    /// <summary>The request type sent by htmx</summary>
    /// <seealso cref="HxRequestTypes" />
    member this.HxRequestType
        with get () =
            match hdr this "HX-Request-Type" with
            | Some typ when typ = "full" -> Some HxFullRequest
            | Some typ when typ = "partial" -> Some HxPartialRequest
            | Some _ -> None
            | None -> None
    /// <summary>The tag name (fst) and <c>id</c> attribute (snd) of the element triggering this request</summary>
    member this.HxSource
        with get () =
            match hdr this "HX-Source" with
            | Some src ->
                let parts = src.Split "#"
                if parts.Length = 1 then
                    Some (parts[0], None)
                else
                    Some (parts[0], if parts[1] <> "" then Some parts[1] else None)
            | None -> None
    /// <summary>The <c>id</c> attribute of the target element if it exists</summary>
    /// <remarks>
    /// In v4, this changed to tag name (fst) and <c>id</c> (snd); to resolve build errors, and restore the prior
    /// behavior of <c>[id] option</c>, replace
    /// <code>ctx.HxTarget</code>
    /// with
    /// <code>ctx.HxTarget |> Option.iter snd</code>
    /// </remarks>
    member this.HxTarget
-        with get () = hdr this "HX-Target"
+        with get () =
            match hdr this "HX-Target" with
            | Some src ->
                let parts = src.Split "#"
                if parts.Length = 1 then
                    Some (parts[0], None)
                else
                    Some (parts[0], if parts[1] <> "" then Some parts[1] else None)
            | None -> None
    /// <summary>The <c>id</c> attribute of the triggered element if it exists</summary>
    [<Obsolete "HX-Trigger is removed in v4; use the second item of HX-Source">]
    member this.HxTrigger
        with get () = hdr this "HX-Trigger"
    /// <summary>The <c>name</c> attribute of the triggered element if it exists</summary>
    [<Obsolete "HX-Trigger-Name is removed in v4; may be available via extension, but will be removed from this library">]
    member this.HxTriggerName
        with get () = hdr this "HX-Trigger-Name"
@@ -62,6 +120,14 @@ module Handlers =
    open Giraffe.Htmx.Common
    /// <summary>Instruct htmx to download a response from another path / URL</summary>
    /// <param name="path">The path or URL where the downloadable content is found</param>
    /// <returns>An HTTP handler with the <c>HX-Download</c> header set</returns>
    /// <remarks>This requires the client-side <c>hx-download</c> extension (included in the htmax bundle)</remarks>
    /// <seealso href="https://four.htmx.org/extensions/hx-download#hx-download-header">Documentation</seealso>
    let withHxDownload (path: string) : HttpHandler =
        setHttpHeader "HX-Download" path
    /// <summary>Instruct htmx to perform a client-side redirect for content</summary>
    /// <param name="path">The path where the content should be found</param>
    /// <returns>An HTTP handler with the <c>HX-Location</c> header set</returns>
@@ -147,29 +213,33 @@ module Handlers =
    /// <param name="evt">The call to the event that should be triggered</param>
    /// <returns>An HTTP handler with the <c>HX-Trigger-After-Settle</c> header set</returns>
    /// <seealso href="https://htmx.org/headers/hx-trigger/">Documentation</seealso>
    [<Obsolete "Removed in v4; use withHxTrigger">]
    let withHxTriggerAfterSettle (evt: string) : HttpHandler =
-        setHttpHeader "HX-Trigger-After-Settle" evt
+        setHttpHeader "HX-Trigger" evt
    /// <summary>Allows you to trigger multiple client side events after changes have settled</summary>
    /// <param name="evts">The calls to events that should be triggered</param>
    /// <returns>An HTTP handler with the <c>HX-Trigger-After-Settle</c> header set for all given events</returns>
    /// <seealso href="https://htmx.org/headers/hx-trigger/">Documentation</seealso>
    [<Obsolete "Removed in v4; use withHxTrigger">]
    let withHxTriggerManyAfterSettle evts : HttpHandler =
-        toJson evts |> setHttpHeader "HX-Trigger-After-Settle"
+        toJson evts |> setHttpHeader "HX-Trigger"
    /// <summary>Allows you to trigger a single client side event after DOM swapping occurs</summary>
    /// <param name="evt">The call to the event that should be triggered</param>
    /// <returns>An HTTP handler with the <c>HX-Trigger-After-Swap</c> header set</returns>
    /// <seealso href="https://htmx.org/headers/hx-trigger/">Documentation</seealso>
    [<Obsolete "Removed in v4; use withHxTrigger">]
    let withHxTriggerAfterSwap (evt: string) : HttpHandler =
-        setHttpHeader "HX-Trigger-After-Swap" evt
+        setHttpHeader "HX-Trigger" evt
    /// <summary>Allows you to trigger multiple client side events after DOM swapping occurs</summary>
    /// <param name="evts">The calls to events that should be triggered</param>
    /// <returns>An HTTP handler with the <c>HX-Trigger-After-Swap</c> header set for all given events</returns>
    /// <seealso href="https://htmx.org/headers/hx-trigger/">Documentation</seealso>
    [<Obsolete "Removed in v4; use withHxTrigger">]
    let withHxTriggerManyAfterSwap evts : HttpHandler =
-        toJson evts |> setHttpHeader "HX-Trigger-After-Swap"
+        toJson evts |> setHttpHeader "HX-Trigger"
 /// <summary>Load the package-provided version of the htmx script</summary>
@@ -180,5 +250,7 @@ module HtmxScript =
    open Microsoft.AspNetCore.Html
    /// <summary><c>script</c> tag to load the package-provided version of the htmx script</summary>
-    let local = HtmlString $"""<script src="{htmxLocalScript}"></script>"""
+    let local = HtmlString $"""<script src="{StaticAssetUrl.htmx}"></script>"""
    /// <summary><c>script</c> tag to load the package-provided version of the htmax script</summary>
    let localMax = HtmlString $"""<script src="{StaticAssetUrl.htmax}"></script>"""
@@ -2,9 +2,11 @@
 This package enables server-side support for [htmx](https://htmx.org) within [Giraffe](https://giraffe.wiki) and ASP.NET's `HttpContext`.
-**htmx version: 2.0.8**
+**htmx version: 4.0.0-beta5**
-_Upgrading from v1.x: the [migration guide](https://htmx.org/migration-guide-htmx-1/) does not currently specify any request or response header changes. This means that there are no required code changes in moving from v1.* to v2.*._
+_Upgrading from v2.x: the [migration guide](https://four.htmx.org/docs/get-started/migration) lists changes for v4. For this package, the `HX-Trigger` and `HX-Trigger-Name` headers are marked obsolete. They are replaced by `HX-Source`, which provides the triggering tag name and `id` attribute. The `HX-Prompt` header has also been marked as obsolete, as the `hx-prompt` attribute which generated its content has been removed._
 _Obsolete elements will be removed in the first production v4 release._
 ### Setup
@@ -18,9 +20,9 @@ To obtain a request header, using the `IHeaderDictionary` extension properties:
 ```fsharp
 let myHandler : HttpHander =
    fun next ctx ->
-        match ctx.HxPrompt with
+        match ctx.Target with
-        | Some prompt -> ... // do something with the text the user provided
+        | Some elt -> ... // do something with id of the target element
-        | None -> ... // no text provided
+        | None -> ... // no target element provided
 ```
 To set a response header:
@@ -34,7 +36,7 @@ let myHandler : HttpHander =
 The `HxSwap` module has constants to use for the `HX-Reswap` header. These may be extended with settle, show, and other qualifiers; see the htmx documentation for the `hx-swap` attribute for more information.
-To load the package-provided htmx library without using Giraffe.ViewEngine, use `HtmxScript.local`.
+To load the package-provided htmx library without using Giraffe.ViewEngine, use `HtmxScript.local`; to load the htmax bundle, use `HtmxScript.localMax`.
 ### Learn
@@ -6,9 +6,25 @@ open Giraffe.Htmx
 /// Test to ensure the version was updated
 let version =
    test "HtmxVersion is correct" {
-        Expect.equal HtmxVersion "2.0.8" "htmx version incorrect"
+        Expect.equal HtmxVersion "4.0.0-beta5" "htmx version incorrect"
    }
 let staticAssetUrl =
    testList "StaticAssetUrl" [
        test "htmx is correct" {
            Expect.equal
                StaticAssetUrl.htmx
                $"/_content/Giraffe.Htmx.Common/htmx.min.js?ver={HtmxVersion}"
                "Static htmx URL incorrect"
        }
        test "htmax is correct" {
            Expect.equal
                StaticAssetUrl.htmax
                $"/_content/Giraffe.Htmx.Common/htmax.min.js?ver={HtmxVersion}"
                "Static htmx URL incorrect"
        }
    ]
 /// Tests for the HxSwap module
 let swap =
    testList "HxSwap" [
@@ -18,22 +34,55 @@ let swap =
        test "OuterHtml is correct" {
            Expect.equal HxSwap.OuterHtml "outerHTML" "Outer HTML swap value incorrect"
        }
-        test "BeforeBegin is correct" {
+        test "InnerMorph is correct" {
-            Expect.equal HxSwap.BeforeBegin "beforebegin" "Before Begin swap value incorrect"
+            Expect.equal HxSwap.InnerMorph "innerMorph" "Inner Morph swap value incorrect"
        }
-        test "BeforeEnd is correct" {
+        test "OuterMorph is correct" {
-            Expect.equal HxSwap.BeforeEnd "beforeend" "Before End swap value incorrect"
+            Expect.equal HxSwap.OuterMorph "outerMorph" "Outer Morph swap value incorrect"
        }
        test "OuterSync is correct" {
            Expect.equal HxSwap.OuterSync "outerSync" "Outer Sync swap value incorrect"
        }
        test "TextContent is correct" {
            Expect.equal HxSwap.TextContent "textContent" "Text Content swap value incorrect"
        }
        test "Before is correct" {
            Expect.equal HxSwap.Before "before" "Before swap value incorrect"
        }
        test "BeforeBegin is correct" {
            Expect.equal HxSwap.BeforeBegin HxSwap.Before "Before Begin swap value incorrect"
        }
        test "Prepend is correct" {
            Expect.equal HxSwap.Prepend "prepend" "Prepend swap value incorrect"
        }
        test "AfterBegin is correct" {
-            Expect.equal HxSwap.AfterBegin "afterbegin" "After Begin swap value incorrect"
+            Expect.equal HxSwap.AfterBegin HxSwap.Prepend "Prepend swap value incorrect"
        }
        test "Append is correct" {
            Expect.equal HxSwap.Append "append" "Append swap value incorrect"
        }
        test "BeforeEnd is correct" {
            Expect.equal HxSwap.BeforeEnd HxSwap.Append "Before End swap value incorrect"
        }
        test "After is correct" {
            Expect.equal HxSwap.After "after" "After swap value incorrect"
        }
        test "AfterEnd is correct" {
-            Expect.equal HxSwap.AfterEnd "afterend" "After End swap value incorrect"
+            Expect.equal HxSwap.AfterEnd HxSwap.After "After End swap value incorrect"
        }
        test "Delete is correct" {
            Expect.equal HxSwap.Delete "delete" "Delete swap value incorrect"
        }
        test "None is correct" {
            Expect.equal HxSwap.None "none" "None swap value incorrect"
        }
        test "Upsert is correct" {
            Expect.equal HxSwap.Upsert "upsert" "Upsert swap value incorrect"
        }
        test "Download is correct" {
            Expect.equal HxSwap.Download "download" "Download swap value incorrect"
        }
    ]
 /// All tests for this module
-let allTests = testList "Htmx.Common" [ version; swap ]
+let allTests = testList "Htmx.Common" [ version; staticAssetUrl; swap ]
@@ -3,7 +3,6 @@ module Htmx
 open System
 open Expecto
 open Giraffe.Htmx
 open Microsoft.AspNetCore.Html
 open Microsoft.AspNetCore.Http
 open NSubstitute
@@ -74,6 +73,30 @@ let dictExtensions =
                    ctx.Request.Headers.HxHistoryRestoreRequest.Value "The header should have been false"
            }
        ]
        testList "HxPreloaded" [
            test "succeeds when the header is not present" {
                let ctx = Substitute.For<HttpContext>()
                ctx.Request.Headers.ReturnsForAnyArgs(HeaderDictionary()) |> ignore
                Expect.isNone ctx.Request.Headers.HxPreloaded "There should not have been a header returned"
            }
            test "succeeds when the header is present and true" {
                let ctx = Substitute.For<HttpContext>()
                let dic = HeaderDictionary()
                dic.Add("HX-Preloaded", "true")
                ctx.Request.Headers.ReturnsForAnyArgs dic |> ignore
                Expect.isSome ctx.Request.Headers.HxPreloaded "There should be a header present"
                Expect.isTrue ctx.Request.Headers.HxPreloaded.Value "The header should have been true"
            }
            // This is not a condition fired by the extension; the header will be either absent or true
            test "succeeds when the header is present and false" {
                let ctx = Substitute.For<HttpContext>()
                let dic = HeaderDictionary()
                dic.Add("HX-Preloaded", "false")
                ctx.Request.Headers.ReturnsForAnyArgs dic |> ignore
                Expect.isSome ctx.Request.Headers.HxPreloaded "There should be a header present"
                Expect.isFalse ctx.Request.Headers.HxPreloaded.Value "The header should have been false"
            }
        ]
        testList "HxPrompt" [
            test "succeeds when the header is not present" {
                let ctx = Substitute.For<HttpContext>()
@@ -112,49 +135,125 @@ let dictExtensions =
                Expect.isFalse ctx.Request.Headers.HxRequest.Value "The header should have been false"
            }
        ]
        testList "HxRequestId" [
            test "succeeds when the header is not present" {
                let ctx = Substitute.For<HttpContext>()
                ctx.Request.Headers.ReturnsForAnyArgs(HeaderDictionary()) |> ignore
                Expect.isNone ctx.Request.Headers.HxRequestId "There should not have been a header returned"
            }
            test "succeeds when the header is present" {
                let ctx = Substitute.For<HttpContext>()
                let dic = HeaderDictionary()
                dic.Add("HX-Request-ID", "abcd1234")
                ctx.Request.Headers.ReturnsForAnyArgs dic |> ignore
                Expect.isSome ctx.Request.Headers.HxRequestId "There should be a header present"
                Expect.equal ctx.Request.Headers.HxRequestId.Value "abcd1234" "The header value was incorrect"
            }
        ]
        testList "HxRequestType" [
            test "succeeds when the header is not present" {
                let ctx = Substitute.For<HttpContext>()
                ctx.Request.Headers.ReturnsForAnyArgs(HeaderDictionary()) |> ignore
                Expect.isNone ctx.Request.Headers.HxRequestType "There should not have been a header returned"
            }
            test "succeeds when the header is invalid" {
                let ctx = Substitute.For<HttpContext>()
                let dic = HeaderDictionary()
                dic.Add("HX-Request-Type", "relaxed")
                ctx.Request.Headers.ReturnsForAnyArgs dic |> ignore
                Expect.isNone ctx.Request.Headers.HxRequestType "There should not have been a header returned"
            }
            test "succeeds for a full request" {
                let ctx = Substitute.For<HttpContext>()
                let dic = HeaderDictionary()
                dic.Add("HX-Request-Type", "full")
                ctx.Request.Headers.ReturnsForAnyArgs dic |> ignore
                Expect.isSome ctx.Request.Headers.HxRequestType "There have been a header returned"
                Expect.equal ctx.Request.Headers.HxRequestType.Value HxFullRequest "The header value is incorrect"
            }
            test "succeeds for a partial request" {
                let ctx = Substitute.For<HttpContext>()
                let dic = HeaderDictionary()
                dic.Add("HX-Request-Type", "partial")
                ctx.Request.Headers.ReturnsForAnyArgs dic |> ignore
                Expect.isSome ctx.Request.Headers.HxRequestType "There have been a header returned"
                Expect.equal ctx.Request.Headers.HxRequestType.Value HxPartialRequest "The header value is incorrect"
            }
        ]
        testList "HxSource" [
            test "succeeds when the header is not present" {
                let ctx = Substitute.For<HttpContext>()
                ctx.Request.Headers.ReturnsForAnyArgs(HeaderDictionary()) |> ignore
                Expect.isNone ctx.Request.Headers.HxSource "There should not have been a header returned"
            }
            test "succeeds when the header is present and both parts exist" {
                let ctx = Substitute.For<HttpContext>()
                let dic = HeaderDictionary()
                dic.Add("HX-Source", "button#theId")
                ctx.Request.Headers.ReturnsForAnyArgs dic |> ignore
                let hdr = ctx.Request.Headers.HxSource
                Expect.isSome hdr "There should be a header present"
                Expect.equal (fst hdr.Value) "button" "The source tag was incorrect"
                Expect.isSome (snd hdr.Value) "There should be a source ID present"
                Expect.equal (snd hdr.Value).Value "theId" "The source ID was incorrect"
            }
            test "succeeds when the header is present and ID is blank" {
                let ctx = Substitute.For<HttpContext>()
                let dic = HeaderDictionary()
                dic.Add("HX-Source", "a#")
                ctx.Request.Headers.ReturnsForAnyArgs dic |> ignore
                let hdr = ctx.Request.Headers.HxSource
                Expect.isSome hdr "There should be a header present"
                Expect.equal (fst hdr.Value) "a" "The source tag was incorrect"
                Expect.isNone (snd hdr.Value) "There should not be a source ID present"
            }
            test "succeeds when the header is present and ID is missing" {
                let ctx = Substitute.For<HttpContext>()
                let dic = HeaderDictionary()
                dic.Add("HX-Source", "form")
                ctx.Request.Headers.ReturnsForAnyArgs dic |> ignore
                let hdr = ctx.Request.Headers.HxSource
                Expect.isSome hdr "There should be a header present"
                Expect.equal (fst hdr.Value) "form" "The source tag was incorrect"
                Expect.isNone (snd hdr.Value) "There should not be a source ID present"
            }
        ]
        testList "HxTarget" [
            test "succeeds when the header is not present" {
                let ctx = Substitute.For<HttpContext>()
                ctx.Request.Headers.ReturnsForAnyArgs(HeaderDictionary()) |> ignore
                Expect.isNone ctx.Request.Headers.HxTarget "There should not have been a header returned"
            }
-            test "succeeds when the header is present" {
+            test "succeeds when the header is present and both parts exist" {
                let ctx = Substitute.For<HttpContext>()
                let dic = HeaderDictionary()
-                dic.Add("HX-Target", "#leItem")
+                dic.Add("HX-Target", "div#leItem")
                ctx.Request.Headers.ReturnsForAnyArgs dic |> ignore
-                Expect.isSome ctx.Request.Headers.HxTarget "There should be a header present"
+                let hdr = ctx.Request.Headers.HxTarget
-                Expect.equal ctx.Request.Headers.HxTarget.Value "#leItem" "The header value was incorrect"
+                Expect.isSome hdr "There should be a header present"
                Expect.equal (fst hdr.Value) "div" "The target tag was incorrect"
                Expect.isSome (snd hdr.Value) "There should be a target ID present"
                Expect.equal (snd hdr.Value).Value "leItem" "The header value was incorrect"
            }
-        ]
+            test "succeeds when the header is present and ID is blank" {
        testList "HxTrigger" [
            test "succeeds when the header is not present" {
                let ctx = Substitute.For<HttpContext>()
                ctx.Request.Headers.ReturnsForAnyArgs (HeaderDictionary ()) |> ignore
                Expect.isNone ctx.Request.Headers.HxTrigger "There should not have been a header returned"
            }
            test "succeeds when the header is present" {
                let ctx = Substitute.For<HttpContext>()
                let dic = HeaderDictionary()
-                dic.Add("HX-Trigger", "#trig")
+                dic.Add("HX-Target", "span#")
                ctx.Request.Headers.ReturnsForAnyArgs dic |> ignore
-                Expect.isSome ctx.Request.Headers.HxTrigger "There should be a header present"
+                let hdr = ctx.Request.Headers.HxTarget
-                Expect.equal ctx.Request.Headers.HxTrigger.Value "#trig" "The header value was incorrect"
+                Expect.isSome hdr "There should be a header present"
                Expect.equal (fst hdr.Value) "span" "The target tag was incorrect"
                Expect.isNone (snd hdr.Value) "There should not be a target ID present"
            }
-        ]
+            test "succeeds when the header is present and ID is missing" {
        testList "HxTriggerName" [
            test "succeeds when the header is not present" {
                let ctx = Substitute.For<HttpContext>()
                ctx.Request.Headers.ReturnsForAnyArgs(HeaderDictionary()) |> ignore
                Expect.isNone ctx.Request.Headers.HxTriggerName "There should not have been a header returned"
            }
            test "HxTriggerName succeeds when the header is present" {
                let ctx = Substitute.For<HttpContext>()
                let dic = HeaderDictionary()
-                dic.Add("HX-Trigger-Name", "click")
+                dic.Add("HX-Target", "aside")
                ctx.Request.Headers.ReturnsForAnyArgs dic |> ignore
-                Expect.isSome ctx.Request.Headers.HxTriggerName "There should be a header present"
+                let hdr = ctx.Request.Headers.HxTarget
-                Expect.equal ctx.Request.Headers.HxTriggerName.Value "click" "The header value was incorrect"
+                Expect.isSome hdr "There should be a header present"
                Expect.equal (fst hdr.Value) "aside" "The target tag was incorrect"
                Expect.isNone (snd hdr.Value) "There should not be a target ID present"
            }
        ]
    ]
@@ -208,6 +307,14 @@ let next (ctx: HttpContext) = Task.FromResult(Some ctx)
 /// Tests for the HttpHandler functions provided in the Handlers module
 let handlers =
    testList "HandlerTests" [
        testTask "withHxDownload succeeds" {
            let ctx = Substitute.For<HttpContext>()
            let dic = HeaderDictionary()
            ctx.Response.Headers.ReturnsForAnyArgs dic |> ignore
            let! _ = withHxDownload "/files/stuff.pdf" next ctx
            Expect.isTrue (dic.ContainsKey "HX-Download") "The HX-Download header should be present"
            Expect.equal dic["HX-Download"].[0] "/files/stuff.pdf" "The HX-Download value was incorrect"
        }
        testTask "withHxLocation succeeds" {
            let ctx = Substitute.For<HttpContext>()
            let dic = HeaderDictionary()
@@ -315,44 +422,6 @@ let handlers =
            Expect.equal
                dic["HX-Trigger"].[0] """{ "blah": "foo", "bleh": "bar" }""" "The HX-Trigger value was incorrect"
        }
        testTask "withHxTriggerAfterSettle succeeds" {
            let ctx = Substitute.For<HttpContext>()
            let dic = HeaderDictionary()
            ctx.Response.Headers.ReturnsForAnyArgs dic |> ignore
            let! _ = withHxTriggerAfterSettle "byTheWay" next ctx
            Expect.isTrue
                (dic.ContainsKey "HX-Trigger-After-Settle") "The HX-Trigger-After-Settle header should be present"
            Expect.equal dic["HX-Trigger-After-Settle"].[0] "byTheWay" "The HX-Trigger-After-Settle value was incorrect"
        }
        testTask "withHxTriggerManyAfterSettle succeeds" {
            let ctx = Substitute.For<HttpContext>()
            let dic = HeaderDictionary()
            ctx.Response.Headers.ReturnsForAnyArgs dic |> ignore
            let! _ = withHxTriggerManyAfterSettle [ "oof", "ouch"; "hmm", "uh" ] next ctx
            Expect.isTrue
                (dic.ContainsKey "HX-Trigger-After-Settle") "The HX-Trigger-After-Settle header should be present"
            Expect.equal
                dic["HX-Trigger-After-Settle"].[0] """{ "oof": "ouch", "hmm": "uh" }"""
                "The HX-Trigger-After-Settle value was incorrect"
        }
        testTask "withHxTriggerAfterSwap succeeds" {
            let ctx = Substitute.For<HttpContext>()
            let dic = HeaderDictionary()
            ctx.Response.Headers.ReturnsForAnyArgs dic |> ignore
            let! _ = withHxTriggerAfterSwap "justASec" next ctx
            Expect.isTrue (dic.ContainsKey "HX-Trigger-After-Swap") "The HX-Trigger-After-Swap header should be present"
            Expect.equal dic["HX-Trigger-After-Swap"].[0] "justASec" "The HX-Trigger-After-Swap value was incorrect"
        }
        testTask "withHxTriggerManyAfterSwap succeeds" {
            let ctx = Substitute.For<HttpContext>()
            let dic = HeaderDictionary()
            ctx.Response.Headers.ReturnsForAnyArgs dic |> ignore
            let! _ = withHxTriggerManyAfterSwap [ "this", "1"; "that", "2" ] next ctx
            Expect.isTrue (dic.ContainsKey "HX-Trigger-After-Swap") "The HX-Trigger-After-Swap header should be present"
            Expect.equal
                dic["HX-Trigger-After-Swap"].[0] """{ "this": "1", "that": "2" }"""
                "The HX-Trigger-After-Swap value was incorrect"
        }
    ]
 /// Tests for the HtmxScript module
@@ -364,7 +433,84 @@ let script =
                $"""<script src="/_content/Giraffe.Htmx.Common/htmx.min.js?ver={HtmxVersion}"></script>"""
                "htmx script link is incorrect"
        }
        test "localMax generates correct link" {
            Expect.equal
                (string HtmxScript.localMax)
                $"""<script src="/_content/Giraffe.Htmx.Common/htmax.min.js?ver={HtmxVersion}"></script>"""
                "htmx script link is incorrect"
        }
    ]
 #nowarn 44 // Obsolete items still have tests
 let dictExtensionsObs =
    testList "IHeaderDictionaryExtensions (Obsolete)" [
        testList "HxTrigger" [
            test "succeeds when the header is not present" {
                let ctx = Substitute.For<HttpContext>()
                ctx.Request.Headers.ReturnsForAnyArgs (HeaderDictionary ()) |> ignore
                Expect.isNone ctx.Request.Headers.HxTrigger "There should not have been a header returned"
            }
            test "succeeds when the header is present" {
                let ctx = Substitute.For<HttpContext>()
                let dic = HeaderDictionary()
                dic.Add("HX-Trigger", "#trig")
                ctx.Request.Headers.ReturnsForAnyArgs dic |> ignore
                Expect.isSome ctx.Request.Headers.HxTrigger "There should be a header present"
                Expect.equal ctx.Request.Headers.HxTrigger.Value "#trig" "The header value was incorrect"
            }
        ]
        testList "HxTriggerName" [
            test "succeeds when the header is not present" {
                let ctx = Substitute.For<HttpContext>()
                ctx.Request.Headers.ReturnsForAnyArgs(HeaderDictionary()) |> ignore
                Expect.isNone ctx.Request.Headers.HxTriggerName "There should not have been a header returned"
            }
            test "HxTriggerName succeeds when the header is present" {
                let ctx = Substitute.For<HttpContext>()
                let dic = HeaderDictionary()
                dic.Add("HX-Trigger-Name", "click")
                ctx.Request.Headers.ReturnsForAnyArgs dic |> ignore
                Expect.isSome ctx.Request.Headers.HxTriggerName "There should be a header present"
                Expect.equal ctx.Request.Headers.HxTriggerName.Value "click" "The header value was incorrect"
            }
        ]
    ]
 let handlerObs =
    testList "Handler Tests (Obsolete)" [
        testTask "withHxTriggerAfterSettle succeeds" {
            let ctx = Substitute.For<HttpContext>()
            let dic = HeaderDictionary()
            ctx.Response.Headers.ReturnsForAnyArgs dic |> ignore
            let! _ = withHxTriggerAfterSettle "byTheWay" next ctx
            Expect.isTrue (dic.ContainsKey "HX-Trigger") "The HX-Trigger header should be present"
            Expect.equal dic["HX-Trigger"].[0] "byTheWay" "The HX-Trigger value was incorrect"
        }
        testTask "withHxTriggerManyAfterSettle succeeds" {
            let ctx = Substitute.For<HttpContext>()
            let dic = HeaderDictionary()
            ctx.Response.Headers.ReturnsForAnyArgs dic |> ignore
            let! _ = withHxTriggerManyAfterSettle [ "oof", "ouch"; "hmm", "uh" ] next ctx
            Expect.isTrue (dic.ContainsKey "HX-Trigger") "The HX-Trigger header should be present"
            Expect.equal dic["HX-Trigger"].[0] """{ "oof": "ouch", "hmm": "uh" }""" "The HX-Trigger value was incorrect"
        }
        testTask "withHxTriggerAfterSwap succeeds" {
            let ctx = Substitute.For<HttpContext>()
            let dic = HeaderDictionary()
            ctx.Response.Headers.ReturnsForAnyArgs dic |> ignore
            let! _ = withHxTriggerAfterSwap "justASec" next ctx
            Expect.isTrue (dic.ContainsKey "HX-Trigger") "The HX-Trigger header should be present"
            Expect.equal dic["HX-Trigger"].[0] "justASec" "The HX-Trigger value was incorrect"
        }
        testTask "withHxTriggerManyAfterSwap succeeds" {
            let ctx = Substitute.For<HttpContext>()
            let dic = HeaderDictionary()
            ctx.Response.Headers.ReturnsForAnyArgs dic |> ignore
            let! _ = withHxTriggerManyAfterSwap [ "this", "1"; "that", "2" ] next ctx
            Expect.isTrue (dic.ContainsKey "HX-Trigger") "The HX-Trigger header should be present"
            Expect.equal dic["HX-Trigger"].[0] """{ "this": "1", "that": "2" }""" "The HX-Trigger value was incorrect"
        }
    ]
 /// All tests for this module
-let allTests = testList "Htmx" [ dictExtensions; reqExtensions; handlers; script ]
+let allTests = testList "Htmx" [ dictExtensions; reqExtensions; handlers; script; dictExtensionsObs; handlerObs ]
@@ -1,6 +1,6 @@
 open Expecto
-let allTests = testList "Giraffe" [ Common.allTests; Htmx.allTests; ViewEngine.allTests ]
+let allTests = testList "Giraffe" [ Common.allTests; Htmx.allTests; ViewEngine.allTests; ViewEngineMax.allTests ]
 [<EntryPoint>]
 let main args = runTestsWithCLIArgs [] args allTests
@@ -8,6 +8,7 @@
    <Compile Include="Common.fs" />
    <Compile Include="Htmx.fs" />
    <Compile Include="ViewEngine.fs" />
    <Compile Include="ViewEngineMax.fs" />
    <Compile Include="Program.fs" />
  </ItemGroup>
@@ -18,9 +19,9 @@
  </ItemGroup>
  <ItemGroup>
-    <PackageReference Include="Expecto" Version="10.2.1" />
+    <PackageReference Include="Expecto" />
-    <PackageReference Include="NSubstitute" Version="5.1.0" />
+    <PackageReference Include="NSubstitute" />
-    <PackageReference Update="FSharp.Core" Version="8.0.300" />
+    <PackageReference Include="FSharp.Core" />
  </ItemGroup>
 </Project>
@@ -0,0 +1,335 @@
 module ViewEngineMax
 open Expecto
 open Giraffe.ViewEngine.Htmax
 /// Tests for the HxBrowserIndicatorConfigItem type
 let hxBrowserIndicatorConfigItem =
    testList "HxBrowserIndicatorConfigItem" [
        testList "ToHcon" [
            test "succeeds for BoostBrowserIndicator" {
                Expect.equal
                    ((BoostBrowserIndicator false).ToHcon())
                    "boostBrowserIndicator:false"
                    "The HCON value was incorrect"
            }
        ]
    ]
 /// Tests for the HxPreloadConfigItem type
 let hxPreloadConfigItem =
    testList "HxPreloadConfigItem" [
        testList "ToHcon" [
            test "succeeds for AutoBoost" {
                Expect.equal ((AutoBoost false).ToHcon()) "autoBoost:false" "The HCON value was incorrect"
            }
            test "succeeds for BoostEvent" {
                Expect.equal ((BoostEvent "mouseover").ToHcon()) "boostEvent:mouseover" "The HCON value was incorrect"
            }
            test "succeeds for BoostTimeout" {
                Expect.equal ((BoostTimeout 30_000).ToHcon()) "boostTimeout:30000" "The HCON value was incorrect"
            }
        ]
    ]
 /// Tests for the HxSseWsConfigItem type
 let hxSseWsConfigItem =
    testList "HxSseWsConfigItem" [
        testList "ToHcon" [
            test "succeeds for Reconnect" {
                Expect.equal ((Reconnect true).ToHcon()) "reconnect:true" "The HCON value was incorrect"
            }
            testList "ReconnectDelay" [
                test "succeeds for numeric value" {
                    Expect.equal ((ReconnectDelay "3000").ToHcon()) "reconnectDelay:3000" "The HCON value was incorrect"
                }
                test "succeeds for value with units" {
                    Expect.equal ((ReconnectDelay "3s").ToHcon()) "reconnectDelay:3s" "The HCON value was incorrect"
                }
            ]
            testList "ReconnectMaxDelay" [
                test "succeeds for numeric value" {
                    Expect.equal
                        ((ReconnectMaxDelay "30000").ToHcon()) "reconnectMaxDelay:30000" "The HCON value was incorrect"
                }
                test "succeeds for value with units" {
                    Expect.equal
                        ((ReconnectMaxDelay "50s").ToHcon()) "reconnectMaxDelay:50s" "The HCON value was incorrect"
                }
            ]
            testList "ReconnectMaxAttempts" [
                test "succeeds for negative 1" {
                    Expect.equal
                        ((ReconnectMaxAttempts -1).ToHcon())
                        "reconnectMaxAttempts:Infinity"
                        "The HCON value was incorrect"
                }
                test "succeeds for zero" {
                    Expect.equal
                        ((ReconnectMaxAttempts 0).ToHcon()) "reconnectMaxAttempts:0" "The HCON value was incorrect"
                }
                test "succeeds for positive number" {
                    Expect.equal
                        ((ReconnectMaxAttempts 7).ToHcon()) "reconnectMaxAttempts:7" "The HCON value was incorrect"
                }
            ]
            test "succeeds for ReconnectJitter" {
                Expect.equal ((ReconnectJitter 0.7).ToHcon()) "reconnectJitter:0.7" "The HCON value was incorrect"
            }
            test "succeeds for PauseOnBackground" {
                Expect.equal
                    ((PauseOnBackground false).ToHcon()) "pauseOnBackground:false" "The HCON value was incorrect"
            }
            test "succeeds for PendingRequestTtl" {
                Expect.equal ((PendingRequestTtl 5000).ToHcon()) "pendingRequestTTL:5000" "The HCON value was incorrect"
            }
        ]
    ]
 /// Tests for the HxConfig module
 let hxConfig =
    testList "HxConfig" [
        test "hxBrowserIndicatorConfig succeeds" {
            Expect.equal
                (hxBrowserIndicatorConfig [ BoostBrowserIndicator true ])
                "browser-indicator.boostBrowserIndicator:true"
                "Config settings not correct"
        }
        test "hxPreloadConfig succeeds" {
            Expect.equal
                (hxPreloadConfig [ AutoBoost true; BoostTimeout 3_000 ])
                "preload.autoBoost:true preload.boostTimeout:3000"
                "Config settings not correct"
        }
        test "hxSseConfig succeeds" {
            Expect.equal
                (hxSseConfig [ ReconnectDelay "5s"; PauseOnBackground false ])
                "sse.reconnectDelay:5s sse.pauseOnBackground:false"
                "Config settings not correct"
        }
        test "hxWsConfig succeeds" {
            Expect.equal
                (hxWsConfig [ Reconnect false; PendingRequestTtl 40_000 ])
                "ws.reconnect:false ws.pendingRequestTTL:40000"
                "Config settings not correct"
        }
    ]
 /// Tests for the HxEvent module
 let hxEvent =
    testList "HxEvent" [
        testList "AfterSseConnection" [
            test "ToString succeeds" {
                Expect.equal
                    (string AfterSseConnection) "afterSseConnection" "AfterSseConnection event name not correct"
            }
            test "ToHxOnString succeeds" {
                Expect.equal
                    (AfterSseConnection.ToHxOnString())
                    "after:sse:connection"
                    "AfterSseConnection hx-on event name not correct"
            }
        ]
        testList "AfterSseMessage" [
            test "ToString succeeds" {
                Expect.equal (string AfterSseMessage) "afterSseMessage" "AfterSseMessage event name not correct"
            }
            test "ToHxOnString succeeds" {
                Expect.equal
                    (AfterSseMessage.ToHxOnString()) "after:sse:message" "AfterSseMessage hx-on event name not correct"
            }
        ]
        testList "AfterWsConnection" [
            test "ToString succeeds" {
                Expect.equal
                    (string AfterWsConnection) "afterWsConnection" "AfterWsConnection event name not correct"
            }
            test "ToHxOnString succeeds" {
                Expect.equal
                    (AfterWsConnection.ToHxOnString())
                    "after:ws:connection"
                    "AfterWsConnection hx-on event name not correct"
            }
        ]
        testList "AfterWsMessage" [
            test "ToString succeeds" {
                Expect.equal (string AfterWsMessage) "afterWsMessage" "AfterWsMessage event name not correct"
            }
            test "ToHxOnString succeeds" {
                Expect.equal
                    (AfterWsMessage.ToHxOnString()) "after:ws:message" "AfterWsMessage hx-on event name not correct"
            }
        ]
        testList "AfterWsRequest" [
            test "ToString succeeds" {
                Expect.equal (string AfterWsRequest) "afterWsRequest" "AfterWsRequest event name not correct"
            }
            test "ToHxOnString succeeds" {
                Expect.equal
                    (AfterWsRequest.ToHxOnString()) "after:ws:request" "AfterWsRequest hx-on event name not correct"
            }
        ]
        testList "BeforeSseConnection" [
            test "ToString succeeds" {
                Expect.equal
                    (string BeforeSseConnection) "beforeSseConnection" "BeforeSseConnection event name not correct"
            }
            test "ToHxOnString succeeds" {
                Expect.equal
                    (BeforeSseConnection.ToHxOnString())
                    "before:sse:connection"
                    "BeforeSseConnection hx-on event name not correct"
            }
        ]
        testList "BeforeSseMessage" [
            test "ToString succeeds" {
                Expect.equal (string BeforeSseMessage) "beforeSseMessage" "BeforeSseMessage event name not correct"
            }
            test "ToHxOnString succeeds" {
                Expect.equal
                    (BeforeSseMessage.ToHxOnString())
                    "before:sse:message"
                    "BeforeSseMessage hx-on event name not correct"
            }
        ]
        testList "BeforeWsConnection" [
            test "ToString succeeds" {
                Expect.equal
                    (string BeforeWsConnection) "beforeWsConnection" "BeforeWsConnection event name not correct"
            }
            test "ToHxOnString succeeds" {
                Expect.equal
                    (BeforeWsConnection.ToHxOnString())
                    "before:ws:connection"
                    "BeforeWsConnection hx-on event name not correct"
            }
        ]
        testList "BeforeWsMessage" [
            test "ToString succeeds" {
                Expect.equal (string BeforeWsMessage) "beforeWsMessage" "BeforeWsMessage event name not correct"
            }
            test "ToHxOnString succeeds" {
                Expect.equal
                    (BeforeWsMessage.ToHxOnString()) "before:ws:message" "BeforeWsMessage hx-on event name not correct"
            }
        ]
        testList "BeforeWsRequest" [
            test "ToString succeeds" {
                Expect.equal (string BeforeWsRequest) "beforeWsRequest" "BeforeWsRequest event name not correct"
            }
            test "ToHxOnString succeeds" {
                Expect.equal
                    (BeforeWsRequest.ToHxOnString()) "before:ws:request" "BeforeWsRequest hx-on event name not correct"
            }
        ]
        testList "DownloadComplete" [
            test "ToString succeeds" {
                Expect.equal (string DownloadComplete) "downloadComplete" "DownloadComplete event name not correct"
            }
            test "ToHxOnString succeeds" {
                Expect.equal
                    (DownloadComplete.ToHxOnString())
                    "download:complete"
                    "DownloadComplete hx-on event name not correct"
            }
        ]
        testList "DownloadProgress" [
            test "ToString succeeds" {
                Expect.equal (string DownloadProgress) "downloadProgress" "DownloadProgress event name not correct"
            }
            test "ToHxOnString succeeds" {
                Expect.equal
                    (DownloadProgress.ToHxOnString())
                    "download:progress"
                    "DownloadProgress hx-on event name not correct"
            }
        ]
        testList "DownloadStart" [
            test "ToString succeeds" {
                Expect.equal (string DownloadStart) "downloadStart" "DownloadStart event name not correct"
            }
            test "ToHxOnString succeeds" {
                Expect.equal
                    (DownloadStart.ToHxOnString()) "download:start" "DownloadStart hx-on event name not correct"
            }
        ]
        testList "SseClose" [
            test "ToString succeeds" {
                Expect.equal (string SseClose) "sseClose" "SseClose event name not correct"
            }
            test "ToHxOnString succeeds" {
                Expect.equal (SseClose.ToHxOnString()) "sse:close" "SseClose hx-on event name not correct"
            }
        ]
        testList "SseError" [
            test "ToString succeeds" {
                Expect.equal (string SseError) "sseError" "SseError event name not correct"
            }
            test "ToHxOnString succeeds" {
                Expect.equal (SseError.ToHxOnString()) "sse:error" "SseError hx-on event name not correct"
            }
        ]
    ]
 open Giraffe.ViewEngine
 /// Pipe-able assertion for a rendered node 
 let shouldRender expected node =
    Expect.equal (RenderView.AsString.htmlNode node) expected "Rendered HTML incorrect"
 /// Tests for the HtmaxAttrs module
 let attributes =
    testList "Attributes" [
        test "_hxBrowserIndicator succeeds" {
            a [ _hxBrowserIndicator ] [] |> shouldRender """<a hx-browser-indicator="true"></a>"""
        }
        test "_hxLive succeeds" {
            main [ _hxLive "q().doStuff()" ] [] |> shouldRender """<main hx-live="q().doStuff()"></main>"""
        }
        test "_hxOnMax succeeds" {
            body [ _hxOnMax SseClose "alert(done)" ] []
            |> shouldRender """<body hx-on:htmx:sse:close="alert(done)"></body>"""
        }
        testList "_hxPreload" [
            test "succeeds when given an event" {
                blockquote [ _hxPreload (Some "focus") ] []
                |> shouldRender """<blockquote hx-preload="focus"></blockquote>"""
            }
            test "succeeds when not given an event" {
                em [ _hxPreload None ] [] |> shouldRender """<em hx-preload></em>"""
            }
        ]
        test "_hxSseClose succeeds" {
            form [ _hxSseClose "fin" ] [] |> shouldRender """<form hx-sse:close="fin"></form>"""
        }
        test "_hxSseConnect succeeds" {
            div [ _hxSseConnect "/path/to/resource" ] []
            |> shouldRender """<div hx-sse:connect="/path/to/resource"></div>"""
        }
        test "_hxTargets succeeds" {
            dl [ _hxTargets ".ephemeral" ] [] |> shouldRender """<dl hx-targets=".ephemeral"></dl>"""
        }
        test "_hxWsConnect succeeds" {
            p [ _hxWsConnect "/over/here" ] [] |> shouldRender """<p hx-ws:connect="/over/here"></p>"""
        }
        testList "_hxWsSend" [
            test "succeeds when given a URL" {
                span [ _hxWsSend (Some "/a/new/place") ] []
                |> shouldRender """<span hx-ws:send="/a/new/place"></span>"""
            }
            test "succeeds when not given a URL" {
                aside [ _hxWsSend None ] [] |> shouldRender """<aside hx-ws:send></aside>"""
            }
        ]
    ]
 let allTests =
    testList "ViewEngine.Htmax" [
        hxBrowserIndicatorConfigItem
        hxPreloadConfigItem
        hxSseWsConfigItem
        hxConfig
        hxEvent
        attributes
    ]
@@ -9,13 +9,14 @@
  <ItemGroup>
    <Compile Include="Htmx.fs" />
    <Compile Include="Htmax.fs" />
    <None Include="README.md" Pack="true" PackagePath="\" />
    <None Include="..\icon.png" Pack="true" PackagePath="\" />
  </ItemGroup>
  <ItemGroup>
-    <PackageReference Include="Giraffe.ViewEngine" Version="1.4.0" />
+    <PackageReference Include="Giraffe.ViewEngine" />
-    <PackageReference Update="FSharp.Core" Version="6.0.0" />
+    <PackageReference Include="FSharp.Core" />
  </ItemGroup>
  <ItemGroup>
@@ -0,0 +1,243 @@
 /// <summary>Types and functions supporting htmax-bundled extension attributes in Giraffe View Engine</summary>
 module Giraffe.ViewEngine.Htmax
 /// <summary>Items which can be configured for the <c>hx-browser-indicator</c> extension</summary>
 /// <seealso href="https://four.htmx.org/extensions/hx-browser-indicator#boosted-elements">Documentation</seealso>
 type HxBrowserIndicatorConfigItem =
    /// <summary>Whether to show the browser's native loading indicator for <c>hx-boost</c>ed links</summary>
    | BoostBrowserIndicator of bool
    /// <summary>Get the HCON representation of this configuration value</summary>
    member this.ToHcon() =
        match this with
        | BoostBrowserIndicator it -> "boostBrowserIndicator:" + (string it).ToLowerInvariant()
 /// <summary>Items which can be configured for the <c>hx-preload</c> extension</summary>
 /// <seealso href="https://four.htmx.org/extensions/hx-preload#configuration">Documentation</seealso>
 type HxPreloadConfigItem =
    /// <summary>Whether items subject to <c>hx-boost</c> are automatically preloaded (default <c>true</c>)</summary>
    | AutoBoost of bool
    /// <summary>The event to use for <c>hx-boost</c> auto-preloaded content (default "mousedown")</summary>
    | BoostEvent of string
    /// <summary>The timeout (in ms) for <c>hx-boost</c> auto-preloaded requests (default 50_000)</summary>
    | BoostTimeout of int
    /// <summary>Get the HCON representation of this configuration value</summary>
    member this.ToHcon() =
        match this with
        | AutoBoost it -> "autoBoost:" + (string it).ToLowerInvariant()
        | BoostEvent it -> $"boostEvent:{it}"
        | BoostTimeout it -> $"boostTimeout:{it}"
 /// <summary>Items which can be configured for the <c>hx-sse</c> or <c>hx-ws</c> extensions</summary>
 /// <seealso href="https://four.htmx.org/extensions/hx-sse#configuration">SSE Documentation</seealso>
 /// <seealso href="https://four.htmx.org/extensions/hx-ws#configuration">WebSockets Documentation</seealso>
 type HxSseWsConfigItem =
    /// <summary>Whether to automatically reconnect on stream end (default <c>true</c>)</summary>
    | Reconnect of bool
    /// <summary>Delay for reconnect attempts (ms, or numbers with units "1s", "2m"; default "500")</summary>
    | ReconnectDelay of string
    /// <summary>Maximum delay for reconnect attempts (ms, or numbers with units "1s, "2m"; default "60000")</summary>
    | ReconnectMaxDelay of string
    /// <summary>Reconnect maximum attempts (use -1 for Infinity; default Infinity)</summary>
    | ReconnectMaxAttempts of int
    /// <summary>Jitter to use when reconnecting (decimal between 0.0 and 1.0; default 0.3)</summary>
    | ReconnectJitter of double
    /// <summary>Whether to pause when the current tab is in the background (default <c>true</c>)</summary>
    | PauseOnBackground of bool
    /// <summary>Time-to-Live (TTL) for pending requests (<c>hx-ws</c> only)</summary>
    | PendingRequestTtl of int
    /// <summary>Get the HCON representation of this configuration value</summary>
    member this.ToHcon() =
        match this with
        | Reconnect it -> "reconnect:" + (string it).ToLowerInvariant()
        | ReconnectDelay it -> $"reconnectDelay:{it}"
        | ReconnectMaxDelay it -> $"reconnectMaxDelay:{it}"
        | ReconnectMaxAttempts it -> "reconnectMaxAttempts:" + if it = -1 then "Infinity" else string it
        | ReconnectJitter it -> $"reconnectJitter:{it}"
        | PauseOnBackground it -> "pauseOnBackground:" + (string it).ToLowerInvariant()
        | PendingRequestTtl it -> $"pendingRequestTTL:{it}"
 /// <summary>Helpers for generating extension configuration parameters</summary>
 [<AutoOpen>]
 module HxConfig =
    /// Create an HCON section suitable for hx-config
    let private hconSettings title values =
        values |> Seq.map (sprintf "%s.%s" title) |> String.concat " "
    /// <summary>Generate configuration items for preload suitable for <c>hx-config</c></summary>
    /// <param name="items">The configuration items</param>
    let hxBrowserIndicatorConfig (items: HxBrowserIndicatorConfigItem seq) =
        items |> Seq.map _.ToHcon() |> hconSettings "browser-indicator"
    /// <summary>Generate configuration items for preload suitable for <c>hx-config</c></summary>
    /// <param name="items">The configuration items</param>
    let hxPreloadConfig (items: HxPreloadConfigItem seq) =
        items |> Seq.map _.ToHcon() |> hconSettings "preload"
    /// <summary>Generate configuration items for SSE suitable for <c>hx-config</c></summary>
    /// <param name="items">The configuration items</param>
    let hxSseConfig (items: HxSseWsConfigItem seq) =
        items |> Seq.map _.ToHcon() |> hconSettings "sse"
    /// <summary>Generate configuration items for WebSockets suitable for <c>hx-config</c></summary>
    /// <param name="items">The configuration items</param>
    let hxWsConfig (items: HxSseWsConfigItem seq) =
        items |> Seq.map _.ToHcon() |> hconSettings "ws"
 /// <summary>The events recognized by htmax-bundled extensions</summary>
 [<Struct>]
 type HxEvent =
    /// <summary>Fired after an SSE connection is established</summary>
    | AfterSseConnection
    /// <summary>Fired after an SSE message is received</summary>
    | AfterSseMessage
    /// <summary>Fired after a WebSocket connection is established</summary>
    | AfterWsConnection
    /// <summary>Fired after a WebSocket message is received</summary>
    | AfterWsMessage
    /// <summary>Fired after a WebSocket request is sent</summary>
    | AfterWsRequest
    /// <summary>Fired before an SSE connection is established (cancelable)</summary>
    | BeforeSseConnection
    /// <summary>Fired before a received SSE message is processed (cancelable)</summary>
    | BeforeSseMessage
    /// <summary>Fired before a WebSocket connection is established (cancelable)</summary>
    | BeforeWsConnection
    /// <summary>Fired when a download handled by <c>hx-download</c> is complete</summary>
    | DownloadComplete
    /// <summary>Fired when a download handled by <c>hx-download</c> is complete</summary>
    | DownloadProgress
    /// <summary>Fired when a chunk is received for a download handled by <c>hx-download</c></summary>
    | DownloadStart
    /// <summary>Fired before a received WebSocket message is processed (cancelable)</summary>
    | BeforeWsMessage
    /// <summary>Fired before a WebSocket request is sent (cancelable)</summary>
    | BeforeWsRequest
    /// <summary>Fired when an SSE connection is closed</summary>
    | SseClose
    /// <summary>Fired when an SSE connection errors</summary>
    | SseError
    /// The htmx event name (fst) and kebab-case name (snd, for use with hx-on)
    static member private Values = Map [
        AfterSseConnection, ("afterSseConnection", "after:sse:connection")
        AfterSseMessage, ("afterSseMessage", "after:sse:message")
        AfterWsConnection, ("afterWsConnection", "after:ws:connection")
        AfterWsMessage, ("afterWsMessage", "after:ws:message")
        AfterWsRequest, ("afterWsRequest", "after:ws:request")
        BeforeSseConnection, ("beforeSseConnection", "before:sse:connection")
        BeforeSseMessage, ("beforeSseMessage", "before:sse:message")
        BeforeWsConnection, ("beforeWsConnection", "before:ws:connection")
        BeforeWsMessage, ("beforeWsMessage", "before:ws:message")
        BeforeWsRequest, ("beforeWsRequest", "before:ws:request")
        DownloadComplete, ("downloadComplete", "download:complete")
        DownloadProgress, ("downloadProgress", "download:progress")
        DownloadStart, ("downloadStart", "download:start")
        SseClose, ("sseClose", "sse:close")
        SseError, ("sseError", "sse:error")
    ]
    /// <summary>The htmx event name</summary> 
    override this.ToString() = fst HxEvent.Values[this]
    /// <summary>The <c>hx-on</c> variant of the htmx event name</summary>
    member this.ToHxOnString() = snd HxEvent.Values[this]
 /// <summary>Attributes and flags for htmax-bundled extensions</summary>
 [<AutoOpen>]
 module HtmaxAttrs =
    /// <summary>Display the browser's native loading indicator when an htmx request is in flight</summary>
    /// <returns>A configured <c>hx-browser-indicator</c> attribute</returns>
    /// <seealso href="https://four.htmx.org/extensions/hx-browser-indicator#usage">Documentation</seealso>
    let _hxBrowserIndicator =
        attr "hx-browser-indicator" "true"
    /// <summary>Run script each time the DOM changes</summary>
    /// <param name="script">The script to be run each time the DOM changes (may use <c>q</c> helper)</param>
    /// <returns>A configured <c>hx-live</c> attribute</returns>
    /// <seealso href="https://four.htmx.org/extensions/hx-live#the-hx-live-attribute">Documentation</seealso>
    let _hxLive script =
        attr "hx-live" script
    /// <summary>Generate an <c>hx-on:htmx</c> event for an htmax-bundled extension event</summary>
    /// <param name="event">The <c>HxEvent</c> to be handled</param>
    /// <param name="handler">The script to be executed when the event occurs</param>
    /// <returns>A configured <c>hx-on:htmx:</c> attribute</returns>
    /// <seealso href="https://htmx.org/attributes/hx-on/">Documentation</seealso>
    let _hxOnMax (event: HxEvent) handler =
        Htmx.HtmxAttrs._hxOnEvent $"htmx:{event.ToHxOnString()}" handler
    /// <summary>Identify a resource as one that should be preloaded</summary>
    /// <param name="evt">The DOM event or htmx trigger which should cause the preload (optional; default behavior is
    /// preloading on <c>mousedown</c>)</param>
    /// <returns>A configured <c>hx-preload</c> attribute</returns>
    /// <seealso href="https://four.htmx.org/extensions/hx-preload#usage">Documentation</seealso>
    let _hxPreload evt =
        match evt with Some it -> attr "hx-preload" it | None -> flag "hx-preload"
    /// <summary>Define an SSE message which indicates the connection should be closed</summary>
    /// <param name="message">The text of the message which indicates the SSE connection should be closed</param>
    /// <returns>A configured <c>hx-sse:close</c> attribute</returns>
    /// <seealso href="https://four.htmx.org/extensions/hx-sse#hx-sseclose">Documentation</seealso>
    let _hxSseClose message =
        attr "hx-sse:close" message
    /// <summary>Define a URL to which an SSE connection should be established</summary>
    /// <param name="url">The URL to which an SSE connection should be established</param>
    /// <returns>A configured <c>hx-sse:connect</c> attribute</returns>
    /// <seealso href="https://four.htmx.org/extensions/hx-sse#hx-sseconnect">Documentation</seealso>
    let _hxSseConnect url =
        attr "hx-sse:connect" url
    /// <summary>Replace multiple targets with the same content</summary>
    /// <param name="selector">The CSS selector to identify targets for the replacement</param>
    /// <returns>A configured <c>hx-targets</c> attribute</returns>
    /// <seealso href="https://four.htmx.org/extensions/hx-targets#usage">Documentation</seealso>
    let _hxTargets selector =
        attr "hx-targets" selector
    /// <summary>Connect to a WebSocket URL</summary>
    /// <param name="url">The URL to which a WebSocket connection should be established</param>
    /// <returns>A configured <c>hx-ws:connect</c> attribute</returns>
    /// <seealso href="https://four.htmx.org/extensions/hx-ws#usage">Documentation</seealso>
    let _hxWsConnect url =
        attr "hx-ws:connect" url
    /// <summary>Send data via a WebSocket connection</summary>
    /// <param name="url">The URL to which the data should be sent (optional; default is connection URL)</param>
    /// <returns>A configured <c>hx-ws:send</c> attribute</returns>
    /// <seealso href="https://four.htmx.org/extensions/hx-ws#usage">Documentation</seealso>
    let _hxWsSend url =
        match url with Some it -> attr "hx-ws:send" it | None -> flag "hx-ws:send"
@@ -1,6 +1,42 @@
 /// <summary>Types and functions supporting htmx attributes in Giraffe View Engine</summary>
 module Giraffe.ViewEngine.Htmx
 /// <summary>Helpers to define <c>hx-config</c> attribute values</summary>
 /// <seealso href="https://four.htmx.org/attributes/hx-config/">Documentation</seealso>
 [<RequireQualifiedAccess>]
 module HxConfig =
    open Giraffe.Htmx.Common
    /// <summary>Configure the request with various options</summary>
    /// <param name="opts">The options to configure</param>
    /// <returns>A string with the configured options</returns>
    let Configure (opts: string list) =
        opts
        |> String.concat ", "
        |> sprintf "{ %s }"
    /// <summary>Set a timeout (in milliseconds)</summary>
    /// <param name="ms">The milliseconds for the request timeout</param>
    /// <returns>A string with the configured request timeout</returns>
    let Timeout (ms: int) =
        $"\"timeout\": {ms}"
    /// <summary>Include or exclude credentials from the request</summary>
    /// <param name="send"><c>true</c> if credentials should be sent, <c>false</c> if not</param>
    /// <returns>A string with the configured credential options</returns>
    let Credentials send =
        (toLowerBool >> sprintf "\"credentials\": %s") send
    /// <summary>Exclude or include headers from the request</summary>
    /// <param name="exclude">
    /// <c>true</c> if no headers should be sent; <c>false</c> if headers should be sent
    /// </param>
    /// <returns>A string with the configured header options</returns>
    let NoHeaders exclude =
        (toLowerBool >> sprintf "\"noHeaders\": %s") exclude
 /// <summary>Valid values for the <c>hx-encoding</c> attribute</summary>
 [<RequireQualifiedAccess>]
 module HxEncoding =
@@ -14,45 +50,107 @@ module HxEncoding =
    let MultipartForm = "multipart/form-data"
 #nowarn 44 // Obsolete elements still have entries in the conversion map; will be removed for v4 final
 /// <summary>The events recognized by htmx</summary>
 /// <seealso href="https://four.htmx.org/events/">Documentation</seealso>
 [<Struct>]
 type HxEvent =
    /// <summary>Send this event to an element to abort a request</summary>
    | Abort
    /// <summary>Triggered after htmx disables an element or removes it from the DOM</summary>
    | AfterCleanup
    /// <summary>Triggered after content is saved to the history cache</summary>
    | AfterHistoryUpdate
    /// <summary>Triggered after a request has initialized</summary>
    | AfterInit
    /// <summary>Triggered after an AJAX request has completed processing a successful response</summary>
-    | AfterOnLoad
+    | [<System.Obsolete "Removed in v4; use AfterInit">] AfterOnLoad
    /// <summary>Triggered after htmx has initialized a DOM node or subtree</summary>
    | AfterProcess
    /// <summary>Triggered after htmx has initialized a node</summary>
-    | AfterProcessNode
+    | [<System.Obsolete "Removed in v4; use AfterProcess">] AfterProcessNode
-    /// <summary>Triggered after an AJAX request has completed</summary>
+    /// <summary>Triggered after new content is saved to the history cache</summary>
    | AfterPushIntoHistory
    /// <summary>Triggered after updated content is saved to the history cache</summary>
    | AfterReplaceIntoHistory
    /// <summary>Triggered after an HTTP request has completed successfully</summary>
    | AfterRequest
    /// <summary>Triggered after the DOM has settled</summary>
    | AfterSettle
    /// <summary>Triggered after a Server Sent Events (SSE) message is read</summary>
    | [<System.Obsolete "Removed in v4; use Htmax.HxEvents.AfterSseMessage">] AfterSseMessage
    /// <summary>Triggered after a Server Sent Events (SSE) stream is closed</summary>
    | [<System.Obsolete "Removed in v4; SSE is assumed to be a stream">] AfterSseStream
    /// <summary>Triggered after new content has been swapped in</summary>
    | AfterSwap
-    /// <summary>Triggered before htmx disables an element or removes it from the DOM</summary>
+    /// <summary>Triggered after a CSS view transition completes</summary>
-    | BeforeCleanupElement
+    | AfterViewTransition
-    /// <summary>Triggered before any response processing occurs</summary>
+    /// <summary>Triggered before htmx disables an element or removes it from the DOM</summary>
-    | BeforeOnLoad
+    | BeforeCleanup
    /// <summary>Triggered before htmx disables an element or removes it from the DOM</summary>
    | [<System.Obsolete "Removed in v4; use BeforeCleanup">] BeforeCleanupElement
    /// <summary>Triggered before content is saved to the history cache</summary>
    | [<System.Obsolete "Removed in v4; use BeforeHistoryUpdate">] BeforeHistorySave
    /// <summary>Triggered before content is saved to the history cache</summary>
    | BeforeHistoryUpdate
    /// <summary>Triggered before htmx initializes a node</summary>
-    | BeforeProcessNode
+    | BeforeInit
-    /// <summary>Triggered before an AJAX request is made</summary>
+    /// <summary>Triggered before any response processing occurs</summary>
    | [<System.Obsolete "Removed in v4; use BeforeInit">] BeforeOnLoad
    /// <summary>Triggered before htmx begins processing a DOM node or subtree</summary>
    | BeforeProcess
    /// <summary>Triggered before htmx initializes a node</summary>
    | [<System.Obsolete "Removed in v4; use BeforeProcess">] BeforeProcessNode
    /// <summary>Triggered before an HTTP request is made</summary>
    | BeforeRequest
    /// <summary>Triggered before an HTTP response is processed (cancelable)</summary>
    | BeforeResponse
    /// <summary>Triggered before a history restore request is made</summary>
    | BeforeRestoreHistory
    /// <summary>Triggered just before an ajax request is sent</summary>
    | [<System.Obsolete "Removed in v4; use BeforeRequest">] BeforeSend
    /// <summary>Triggered before a Server Sent Events (SSE) message is read</summary>
    | [<System.Obsolete "Removed in v4; use Htmax.HxEvents.BeforeSseMessage">] BeforeSseMessage
    /// <summary>Triggered before a Server Sent Events (SSE) connection is reconnected</summary>
    | [<System.Obsolete "Removed in v4; use fetch event handlers">] BeforeSseReconnect
    /// <summary>Triggered before a Server Sent Events (SSE) stream is opened</summary>
    | [<System.Obsolete "Removed in v4; SSE is assumed to be a stream">] BeforeSseStream
    /// <summary>Triggered before a swap is done, allows you to configure the swap</summary>
    | BeforeSwap
-    /// <summary>Triggered just before an ajax request is sent</summary>
+    /// <summary>Triggered before a CSS view transition starts</summary>
-    | BeforeSend
+    | BeforeViewTransition
    /// <summary>Triggered before the request, allows you to customize parameters, headers</summary>
    | ConfigRequest
@@ -62,134 +160,157 @@ type HxEvent =
    /// </summary>
    | Confirm
    /// <summary>Triggered when an error occurs</summary>
    | Error
    /// <summary>Triggered after an HTTP request is made, whether it was successful or not</summary>
    | FinallyRequest
    /// <summary>Triggered on an error during cache writing</summary>
-    | HistoryCacheError
+    | [<System.Obsolete "Removed in v4; history no longer uses localStorage">] HistoryCacheError
    /// <summary>Triggered on a cache miss in the history subsystem</summary>
-    | HistoryCacheMiss
+    | [<System.Obsolete "Removed in v4; use BeforeRestoreHistory">] HistoryCacheMiss
    /// <summary>Triggered on a unsuccessful remote retrieval</summary>
-    | HistoryCacheMissError
+    | [<System.Obsolete "Removed in v4; history no longer uses localStorage">] HistoryCacheMissError
    /// <summary>Triggered on a successful remote retrieval</summary>
-    | HistoryCacheMissLoad
+    | [<System.Obsolete "Removed in v4; use BeforeRestoreHistory">] HistoryCacheMissLoad
    /// <summary>Triggered when htmx handles a history restoration action</summary>
-    | HistoryRestore
+    | [<System.Obsolete "Removed in v4; use BeforeRestoreHistory">] HistoryRestore
    /// <summary>Triggered before content is saved to the history cache</summary>
    | BeforeHistorySave
    /// <summary>Triggered when new content is added to the DOM</summary>
-    | Load
+    | [<System.Obsolete "Removed in v4; use AfterInit">] Load
    /// <summary>
    /// Triggered when an element refers to a SSE event in its trigger, but no parent SSE source has been defined
    /// </summary>
-    | NoSseSourceError
+    | [<System.Obsolete "Removed in v4; use Error (all errors consolidated)">] NoSseSourceError
    /// <summary>Triggered when an exception occurs during the onLoad handling in htmx</summary>
-    | OnLoadError
+    | [<System.Obsolete "Removed in v4; use Error (all errors consolidated)">] OnLoadError
    /// <summary>Triggered after an out of band element as been swapped in</summary>
-    | OobAfterSwap
+    | [<System.Obsolete "Removed in v4; use AfterSwap (no separate OOB event)">] OobAfterSwap
    /// <summary>Triggered before an out of band element swap is done, allows you to configure the swap</summary>
-    | OobBeforeSwap
+    | [<System.Obsolete "Removed in v4; use BeforeSwap (no separate OOB event)">] OobBeforeSwap
    /// <summary>Triggered when an out of band element does not have a matching ID in the current DOM</summary>
-    | OobErrorNoTarget
+    | [<System.Obsolete "Removed in v4; use Error (all errors consolidated)">] OobErrorNoTarget
    /// <summary>Triggered after a prompt is shown</summary>
-    | Prompt
+    | [<System.Obsolete "Removed in v4; use Confirm with custom JavaScript">] Prompt
    /// <summary>Triggered after an url is pushed into history</summary>
-    | PushedIntoHistory
+    | [<System.Obsolete "Removed in v4; use AfterPushIntoHistory (or AfterHistoryUpdate to catch new and updated content)">] PushedIntoHistory
    /// <summary>Triggered when an HTTP response error (non-200 or 300 response code) occurs</summary>
    | ResponseError
    /// <summary>Triggered when a network error prevents an HTTP request from happening</summary>
-    | SendError
+    | [<System.Obsolete "Removed in v4; use Error (all errors consolidated)">] SendError
    /// <summary>Triggered when an error occurs with a SSE source</summary>
-    | SseError
+    | [<System.Obsolete "Removed in v4; use Htmax.HxEvents.SseError)">] SseError
-    /// <summary>Triggered when a SSE source is opened</summary>
+    /// <summary>Triggered when an SSE source is opened</summary>
-    | SseOpen
+    | [<System.Obsolete "Removed in v4; use Htmax.HxEvents.AfterSseConnection">] SseOpen
    /// <summary>Triggered when an error occurs during the swap phase</summary>
-    | SwapError
+    | [<System.Obsolete "Removed in v4; use Error (all errors consolidated)">] SwapError
    /// <summary>Triggered when an invalid target is specified</summary>
-    | TargetError
+    | [<System.Obsolete "Removed in v4; use Error (all errors consolidated)">] TargetError
    /// <summary>Triggered when a request timeout occurs</summary>
-    | Timeout
+    | [<System.Obsolete "Removed in v4; use Error (timeout is exposed as an error)">] Timeout
    /// <summary>Triggered before an element is validated</summary>
-    | ValidationValidate
+    | [<System.Obsolete "Removed in v4; use native validation API">] ValidationValidate
    /// <summary>Triggered when an element fails validation</summary>
-    | ValidationFailed
+    | [<System.Obsolete "Removed in v4; use native validation API">] ValidationFailed
    /// <summary>Triggered when a request is halted due to validation errors</summary>
-    | ValidationHalted
+    | [<System.Obsolete "Removed in v4; use native validation API">] ValidationHalted
    /// <summary>Triggered when an ajax request aborts</summary>
-    | XhrAbort
+    | [<System.Obsolete "Removed in v4; use fetch event listeners or Error event">] XhrAbort
    /// <summary>Triggered when an ajax request ends</summary>
-    | XhrLoadEnd
+    | [<System.Obsolete "Removed in v4; use fetch event listeners or FinallyRequest event">] XhrLoadEnd
    /// <summary>Triggered when an ajax request starts</summary>
-    | XhrLoadStart
+    | [<System.Obsolete "Removed in v4; use fetch event listeners">] XhrLoadStart
    /// <summary>Triggered periodically during an ajax request that supports progress events</summary>
-    | XhrProgress
+    | [<System.Obsolete "Removed in v4; use fetch event listeners">] XhrProgress
    /// The htmx event name (fst) and kebab-case name (snd, for use with hx-on)
    static member private Values = Map [
        Abort, ("abort", "abort")
-        AfterOnLoad, ("afterOnLoad", "after-on-load")
+        AfterCleanup, ("afterCleanup", "after:cleanup")
-        AfterProcessNode, ("afterProcessNode", "after-process-node")
+        AfterHistoryUpdate, ("afterHistoryUpdate", "after:history:update")
-        AfterRequest, ("afterRequest", "after-request")
+        AfterInit, ("afterInit", "after:init")
-        AfterSettle, ("afterSettle", "after-settle")
+        AfterOnLoad, ("afterOnLoad", "after:init")
-        AfterSwap, ("afterSwap", "after-swap")
+        AfterProcessNode, ("afterProcessNode", "after:process")
-        BeforeCleanupElement, ("beforeCleanupElement", "before-cleanup-element")
+        AfterPushIntoHistory, ("afterPushIntoHistory", "after:push:into:history")
-        BeforeOnLoad, ("beforeOnLoad", "before-on-load")
+        AfterReplaceIntoHistory, ("afterReplaceIntoHistory", "after:replace:into:history")
-        BeforeProcessNode, ("beforeProcessNode", "before-process-node")
+        AfterRequest, ("afterRequest", "after:request")
-        BeforeRequest, ("beforeRequest", "before-request")
+        AfterSettle, ("afterSettle", "after:settle")
-        BeforeSwap, ("beforeSwap", "before-swap")
+        AfterSseMessage, ("afterSseMessage", "after:sse:message")
-        BeforeSend, ("beforeSend", "before-send")
+        AfterSseStream, ("afterSseStream", "after:sse:stream")
-        ConfigRequest, ("configRequest", "config-request")
+        AfterSwap, ("afterSwap", "after:swap")
        AfterViewTransition, ("afterViewTransition", "after:viewTransition")
        BeforeCleanup, ("beforeCleanup", "before:cleanup")
        BeforeCleanupElement, ("beforeCleanupElement", "before:cleanup")
        BeforeHistorySave, ("beforeHistorySave", "before:history:update")
        BeforeHistoryUpdate, ("beforeHistoryUpdate", "before:history:update")
        BeforeInit, ("beforeInit", "before:init")
        BeforeOnLoad, ("beforeOnLoad", "before:init")
        BeforeProcess, ("beforeProcess", "before:process")
        BeforeProcessNode, ("beforeProcessNode", "before:process")
        BeforeRequest, ("beforeRequest", "before:request")
        BeforeResponse, ("beforeResponse", "before:response")
        BeforeRestoreHistory, ("beforeRestoreHistory", "before:restore:history")
        BeforeSend, ("beforeSend", "before:request")
        BeforeSseMessage, ("beforeSseMessage", "before:sse:message")
        BeforeSseReconnect, ("beforeSseReconnect", "before:sse:reconnect")
        BeforeSseStream, ("beforeSseStream", "before:sse:stream")
        BeforeSwap, ("beforeSwap", "before:swap")
        BeforeViewTransition, ("beforeTransition", "before:viewTransition")
        ConfigRequest, ("configRequest", "config:request")
        Confirm, ("confirm", "confirm")
        Error, ("error", "error")
        FinallyRequest, ("finallyRequest", "finally:request")
        HistoryCacheError, ("historyCacheError", "history-cache-error")
-        HistoryCacheMiss, ("historyCacheMiss", "history-cache-miss")
+        HistoryCacheMiss, ("historyCacheMiss", "before:history:restore")
        HistoryCacheMissError, ("historyCacheMissError", "history-cache-miss-error")
-        HistoryCacheMissLoad, ("historyCacheMissLoad", "history-cache-miss-load")
+        HistoryCacheMissLoad, ("historyCacheMissLoad", "before:history:restore")
-        HistoryRestore, ("historyRestore", "history-restore")
+        HistoryRestore, ("historyRestore", "before:history:restore")
-        BeforeHistorySave, ("beforeHistorySave", "before-history-save")
+        Load, ("load", "after:init")
-        Load, ("load", "load")
+        NoSseSourceError, ("noSSESourceError", "error")
-        NoSseSourceError, ("noSSESourceError", "no-sse-source-error")
+        OnLoadError, ("onLoadError", "error")
-        OnLoadError, ("onLoadError", "on-load-error")
+        OobAfterSwap, ("oobAfterSwap", "after:swap")
-        OobAfterSwap, ("oobAfterSwap", "oob-after-swap")
+        OobBeforeSwap, ("oobBeforeSwap", "before:swap")
-        OobBeforeSwap, ("oobBeforeSwap", "oob-before-swap")
+        OobErrorNoTarget, ("oobErrorNoTarget", "error")
        OobErrorNoTarget, ("oobErrorNoTarget", "oob-error-no-target")
        Prompt, ("prompt", "prompt")
-        PushedIntoHistory, ("pushedIntoHistory", "pushed-into-history")
+        PushedIntoHistory, ("pushedIntoHistory", "after:push:into:history")
-        ResponseError, ("responseError", "response-error")
+        ResponseError, ("responseError", "response:error")
-        SendError, ("sendError", "send-error")
+        SendError, ("sendError", "error")
-        SseError, ("sseError", "sse-error")
+        SseError, ("sseError", "sse:error")
-        SseOpen, ("sseOpen", "sse-open")
+        SseOpen, ("sseOpen", "after:sse:connection")
-        SwapError, ("swapError", "swap-error")
+        SwapError, ("swapError", "error")
-        TargetError, ("targetError", "target-error")
+        TargetError, ("targetError", "error")
-        Timeout, ("timeout", "timeout")
+        Timeout, ("timeout", "error")
        ValidationValidate, ("validation:validate", "validation:validate")
        ValidationFailed, ("validation:failed", "validation:failed")
        ValidationHalted, ("validation:halted", "validation:halted")
-        XhrAbort, ("xhr:abort", "xhr:abort")
+        XhrAbort, ("xhr:abort", "error")
-        XhrLoadEnd, ("xhr:loadend", "xhr:loadend")
+        XhrLoadEnd, ("xhr:loadend", "finally:request")
        XhrLoadStart, ("xhr:loadstart", "xhr:loadstart")
        XhrProgress, ("xhr:progress", "xhr:progress")
    ]
@@ -199,6 +320,7 @@ type HxEvent =
    /// <summary>The <c>hx-on</c> variant of the htmx event name</summary>
    member this.ToHxOnString() = snd HxEvent.Values[this]
 #warn 44 // restore obsolete warning
 /// <summary>Helper to create the <c>hx-headers</c> attribute</summary>
@@ -212,6 +334,7 @@ module HxHeaders =
 /// <summary>Values / helpers for the <c>hx-params</c> attribute</summary>
 /// <seealso href="https://htmx.org/attributes/hx-params/">Documentation</seealso>
 [<RequireQualifiedAccess>]
 [<System.Obsolete "Removed in v4; filter parameters via JavaScript in configRequest event">]
 module HxParams =
    /// <summary>Include all parameters</summary>
@@ -238,6 +361,7 @@ module HxParams =
 /// <summary>Helpers to define <c>hx-request</c> attribute values</summary>
 /// <seealso href="https://htmx.org/attributes/hx-request/">Documentation</seealso>
 [<RequireQualifiedAccess>]
 [<System.Obsolete "Removed in v4; change to HxConfig">]
 module HxRequest =
    open Giraffe.Htmx.Common
@@ -487,16 +611,31 @@ module HxVals =
    let From = Giraffe.Htmx.Common.toJson
 open System.Net.Http
 open Giraffe.Htmx
 /// <summary>Attributes and flags for htmx</summary>
 [<AutoOpen>]
 module HtmxAttrs =
    /// <summary>The URL which will receive the request (use with <c>_hxMethod</c>)</summary>
    /// <param name="url">The URL for the attribute</param>
    /// <seealso href="https://four.htmx.org/attributes/hx-action/">Documentation</seealso>
    let _hxAction url =
        attr "hx-action" url
    /// <summary>Progressively enhances anchors and forms to use AJAX requests</summary>
    /// <remarks>Use <c>_hxNoBoost</c> to set to false</remarks>
    /// <seealso href="https://htmx.org/attributes/hx-boost/">Documentation</seealso>
-    let _hxBoost = attr "hx-boost" "true"
+    let _hxBoost =
        attr "hx-boost" "true"
    /// <summary>Configure request behavior</summary>
    /// <param name="config">The configuration parameters to use for the request</param>
    /// <returns>A configured <c>hx-config</c> attribute</returns>
    /// <seealso cref="https://four.htmx.org/attributes/hx-config/">Documentation</seealso>
    let _hxConfig config =
        attr "hx-config" (toJson config)
    /// <summary>Shows a <c>confirm()</c> dialog before issuing a request</summary>
    /// <param name="prompt">The prompt to present to the user when seeking their confirmation</param>
@@ -512,14 +651,23 @@ module HtmxAttrs =
    let _hxDelete url =
        attr "hx-delete" url
-    /// <summary>Disables htmx processing for the given node and any children nodes</summary>
+    /// <summary>Specifies elements that should be disabled when an htmx request is in flight</summary>
-    /// <seealso href="https://htmx.org/attributes/hx-disable/">Documentation</seealso>
+    /// <param name="elt">The element to disable when an htmx request is in flight</param>
-    let _hxDisable = flag "hx-disable"
+    /// <returns>A configured <c>hx-disable</c> attribute</returns>
    /// <remarks>This behavior changed in v4
    /// <ul><li>For the v2 behavior of <c>hx-disable</c> (which will manifest as compile errors), change instances to
    /// <c>_hxIgnore</c></li>
    /// <li>For v4 behavior, changing <c>_hxDisabledElt</c> to <c>_hxDisable</c> should be sufficient</li></ul>
    /// </remarks>
    /// <seealso href="https://four.htmx.org/attributes/hx-disable/">Documentation</seealso>
    let _hxDisable elt =
        attr "hx-disable" elt
    /// <summary>Specifies elements that should be disabled when an htmx request is in flight</summary>
    /// <param name="elt">The element to disable when an htmx request is in flight</param>
    /// <returns>A configured <c>hx-disabled-elt</c> attribute</returns>
    /// <seealso href="https://htmx.org/attributes/hx-disabled-elt/">Documentation</seealso>
    [<System.Obsolete "hx-disabled-elt has become hx-disable in v4">]
    let _hxDisabledElt elt =
        attr "hx-disabled-elt" elt
@@ -527,6 +675,7 @@ module HtmxAttrs =
    /// <param name="hxAttrs">The htmx attributes to disinherit (should start with "hx-")</param>
    /// <returns>A configured <c>hx-disinherit</c> attribute</returns>
    /// <seealso href="https://htmx.org/attributes/hx-disinherit/">Documentation</seealso>
    [<System.Obsolete "hx-disinherit removed in v4; use explicit inheritance">]
    let _hxDisinherit hxAttrs =
        attr "hx-disinherit" hxAttrs
@@ -542,6 +691,7 @@ module HtmxAttrs =
    /// <param name="exts">A list of extensions to apply to this element</param>
    /// <returns>A configured <c>hx-ext</c> attribute</returns>
    /// <seealso href="https://htmx.org/attributes/hx-ext/">Documentation</seealso>
    [<System.Obsolete "hx-ext removed in v4; extensions register via JavaScript">]
    let _hxExt exts =
        attr "hx-ext" exts
@@ -565,14 +715,21 @@ module HtmxAttrs =
    /// <param name="shouldStore">Whether the page should be stored in the history cache</param>
    /// <returns>A configured <c>hx-history</c> attribute</returns>
    /// <seealso href="https://htmx.org/attributes/hx-history/">Documentation</seealso>
    [<System.Obsolete "hx-history removed in v4; history does not use localStorage">]
    let _hxHistory shouldStore =
        attr "hx-history" (toLowerBool shouldStore)
    /// <summary>The element to snapshot and restore during history navigation</summary>
    /// <seealso href="https://htmx.org/attributes/hx-history-elt/">Documentation</seealso>
    [<System.Obsolete "hx-history-elt removed in v4; history based on target element">]
    let _hxHistoryElt =
        flag "hx-history-elt"
    /// <summary>Disables htmx processing for the given node and any children nodes</summary>
    /// <seealso href="https://four.htmx.org/attributes/hx-ignore/">Documentation</seealso>
    let _hxIgnore =
        flag "hx-ignore"
    /// <summary>Includes additional data in AJAX requests</summary>
    /// <param name="spec">The specification of what should be included in the request</param>
    /// <returns>A configured <c>hx-include</c> attribute</returns>
@@ -587,6 +744,12 @@ module HtmxAttrs =
    let _hxIndicator selector =
        attr "hx-indicator" selector
    /// <summary>The HTTP method to use for the request(use with <c>_hxAction</c>)</summary>
    /// <param name="method">The method to use</param>
    /// <seealso href="https://four.htmx.org/attributes/hx-method/">Documentation</seealso>
    let _hxMethod (method: HttpMethod) =
        attr "hx-method" (method.Method.ToLowerInvariant())
    /// <summary>Overrides a previous <c>hx-boost</c> (hx-boost="false")</summary>
    /// <seealso href="https://htmx.org/attributes/hx-boost/">Documentation</seealso>
    let _hxNoBoost =
@@ -603,17 +766,19 @@ module HtmxAttrs =
    /// <summary>Attach an event handler for htmx events</summary>
    /// <param name="hxEvent">The <c>HxEvent</c> to be handled</param>
    /// <param name="handler">The script to be executed when the event occurs</param>
-    /// <returns>A configured <c>hx-on::</c> attribute</returns>
+    /// <returns>A configured <c>hx-on:htmx:</c> attribute</returns>
    /// <remarks>For events defined in htmax, use <c>_hxOnMax</c></remarks>
    /// <seealso cref="HxEvent" />
    /// <seealso href="https://htmx.org/attributes/hx-on/">Documentation</seealso>
    let _hxOnHxEvent (hxEvent: HxEvent) handler =
-        _hxOnEvent $":{hxEvent.ToHxOnString()}" handler
+        _hxOnEvent $"htmx:{hxEvent.ToHxOnString()}" handler
    /// <summary>Filters the parameters that will be submitted with a request</summary>
    /// <param name="toInclude">The fields to include (use <c>HxParams</c> to generate this value)</param>
    /// <returns>A configured <c>hx-params</c> attribute</returns>
    /// <seealso cref="HxParams" />
    /// <seealso href="https://htmx.org/attributes/hx-params/">Documentation</seealso>
    [<System.Obsolete "hx-params removed in v4; use htmx:config:request to filter parameter">]
    let _hxParams toInclude =
        attr "hx-params" toInclude
@@ -639,7 +804,12 @@ module HtmxAttrs =
    /// <summary>Shows a <c>prompt()</c> dialog before submitting a request</summary>
    /// <param name="text">The text for the prompt</param>
    /// <returns>A configured <c>hx-prompt</c> attribute</returns>
-    /// <remarks>The value provided will be in the <c>HX-Prompt</c> request header</remarks>
+    /// <remarks>
    /// <ul>
    /// <li><b>NEW IN v4:</b> This functionality is dependent on the hx-prompt extension being loaded</li>
    /// <li>The value provided will be in the <c>HX-Prompt</c> request header</li>
    /// </ul>
    /// </remarks>
    /// <seealso href="https://htmx.org/attributes/hx-prompt/">Documentation</seealso>
    let _hxPrompt text =
        attr "hx-prompt" text
@@ -682,6 +852,7 @@ module HtmxAttrs =
    /// <returns>A configured <c>hx-request</c> attribute</returns>
    /// <seealso cref="HxRequest.Configure" />
    /// <seealso href="https://htmx.org/attributes/hx-request/">Documentation</seealso>
    [<System.Obsolete "hx-request removed in v4; use hx-config instead">]
    let _hxRequest spec =
        attr "hx-request" spec
@@ -699,6 +870,31 @@ module HtmxAttrs =
    let _hxSelectOob selectors =
        attr "hx-select-oob" selectors
    /// <summary>Define a response to an HTTP status code or code range</summary>
    /// <param name="code">
    /// The code or code range; for a code, pass the full code as a string (ex. <c>404</c>), and for a range, pass a
    /// string with one or two characters (ex. <c>5</c> for all 500s, <c>42</c> for 420-429)
    /// </param>
    /// <param name="swap">The swap style to use for this action(use <c>HxSwap</c> values)</param>
    /// <param name="action">
    /// The action which should be taken for responses matching the status code; can be a combination of the following,
    /// with each item separated by a space:
    /// <ul>
    /// <li><c>target:</c> and a CSS selector for the swap target (overrides original <c>hx-target</c>)</li>
    /// <li><c>select:</c> and a CSS selector for the content to be swapped (overrides original <c>hx-select</c>)</li>
    /// <li><c>push:</c> and <c>true</c>, <c>false</c>, or a URL; <c>false</c> does not update URL history, <c>true</c>
    /// updates with the current URL, and a string URL will be pushed into history as-is</li>
    /// <li><c>replace:</c> and <c>true</c>, <c>false</c>, or a URL; same as <c>push:</c>, but replaces in history
    /// instead</li>
    /// <li><c>transition:</c> and <c>true</c> or <c>false</c>; whether to use view transitions</li>
    /// </ul>
    /// If only the type of swap is being changed, pass an empty string to this parameter.
    /// </param>
    /// <seealso href="https://four.htmx.org/reference/attributes/hx-status">Documentation</seealso>
    let _hxStatus code swap action =
        let range = $"%s{code}xx".Substring(0, 3)
        attr $"hx-status:{range}" ($"swap:%s{swap} %s{action}".Trim())
    /// <summary>
    /// Controls how the response content is swapped into the DOM (e.g. <c>outerHTML</c> or <c>beforeEnd</c>)
    /// </summary>
@@ -774,39 +970,88 @@ module HtmxAttrs =
    /// <param name="url">The URL from which events will be received</param>
    /// <returns>A configured <c>sse-connect</c> attribute</returns>
    /// <seealso href="https://htmx.org/extensions/sse/#usage">Extension Docs</seealso>
-    let _sseConnect url =
+    let [<System.Obsolete "Removed in v4; use Htmax._hxSseConnect">] _sseConnect url =
        attr "sse-connect" url
    /// <summary>The name(s) of the message(s) to swap into the DOM</summary>
    /// <param name="messages">The message names (comma-delimited) to swap (use "message" for unnamed events)</param>
    /// <returns>A configured <c>sse-swap</c> attribute</returns>
    /// <seealso href="https://htmx.org/extensions/sse/#usage">Extension Docs</seealso>
-    let _sseSwap messages =
+    let [<System.Obsolete "Removed in v4; use hx-swap on target element">] _sseSwap messages =
        attr "sse-swap" messages
 /// <summary>Modifiers for htmx attributes</summary>
 [<AutoOpen>]
 module HxModifiers =
    /// <summary>Append this value to any inherited value of the attribute</summary>
    /// <param name="attrib">The attribute to which <c>:append</c> should be applied</param>
    /// <returns>The given attribute with <c>:append</c> applied</returns>
    let hxAppend attrib =
        match attrib with
        | KeyValue (name, value) -> attr $"{name}:append" value
        | Boolean name -> flag $"{name}:append"
    /// <summary>Explicitly propagate inheritance for the value for this attribute</summary>
    /// <param name="attrib">The attribute whose value should be inherited</param>
    /// <returns>The given attribute with <c>:inherited</c> applied</returns>
    let hxInherited attrib =
        match attrib with
        | KeyValue (name, value) -> attr $"{name}:inherited" value
        | Boolean name -> flag $"{name}:inherited"
 /// <summary>htmx-specific HTML tags</summary>
 [<AutoOpen>]
 module HxTags =
    /// <summary>An <c>hx-partial</c> tag</summary>
    let hxPartial = tag "hx-partial"
 /// <summary>Script tags to pull htmx into a web page</summary>
 module Script =
    open System
    /// <summary>Script tag to load the package-provided version of htmx</summary>
-    let local = script [ _src htmxLocalScript ] []
+    let local = script [ _src StaticAssetUrl.htmx ] []
    /// <summary>Script tag to load the minified version from jsdelivr.net</summary>
    /// <remarks>Ensure <c>cdn.jsdelivr.net</c> is in your CSP <c>script-src</c> list (if applicable)</remarks>
    let cdnMinified =
-        script [ _src         "https://cdn.jsdelivr.net/npm/htmx.org@2.0.8/dist/htmx.min.js"
+        script [ _src         $"https://cdn.jsdelivr.net/npm/htmx.org@{HtmxVersion}/dist/htmx.min.js"
-                 _integrity   "sha256-Iig+9oy3VFkU8KiKG97cclanA9HVgMHSVSF9ClDTExM="
+                 _integrity   "sha384-5dnhUXCt1hXGvYrjAnKwgNX3I8xtIJiW6eIHIbeo7oWyXv2XpWYC/rl+ZiWfuYO5"
                 _crossorigin "anonymous" ] []
    /// <summary>Script tag to load the unminified version from jsdelivr.net</summary>
    /// <remarks>Ensure <c>cdn.jsdelivr.net</c> is in your CSP <c>script-src</c> list (if applicable)</remarks>
    let cdnUnminified =
-        script [ _src         "https://cdn.jsdelivr.net/npm/htmx.org@2.0.8/dist/htmx.js"
+        script [ _src         $"https://cdn.jsdelivr.net/npm/htmx.org@{HtmxVersion}/dist/htmx.js"
-                 _integrity   "sha256-upUwYnay6R+DA68rROTAP+EdfO3NvOqtE513PgDyAYM="
+                 _integrity   "sha384-RZoQSZlu2BAuZMuM5lTKAWXXSKC+7X6eVzP1pwkUBcyfPmOswexqVOsUqQMKbAFA"
                 _crossorigin "anonymous" ] []
    /// <summary>Script tags to load the htmax bundle</summary>
    module Max =
        /// <summary>Script tag to load the package-provided version of the htmx-plus-extensions bundle</summary>
        let local = script [ _src StaticAssetUrl.htmax ] []
        /// <summary>Script tag to load the minified htmx-plus-extensions bundle from jsdelivr.net</summary>
        /// <remarks>Ensure <c>cdn.jsdelivr.net</c> is in your CSP <c>script-src</c> list (if applicable)</remarks>
        let cdnMinified =
            script [ _src         $"https://cdn.jsdelivr.net/npm/htmx.org@{HtmxVersion}/dist/htmax.min.js"
                     _integrity   "sha384-VVbrNR6a+H8puV17ZlJ8aUUMTgbcDiqM1vlLYEmaaU4oFANllvTK2pLynNonElP+"
                     _crossorigin "anonymous" ] []
        /// <summary>Script tag to load the unminified htmx-plus-extensions bundle from jsdelivr.net</summary>
        /// <remarks>Ensure <c>cdn.jsdelivr.net</c> is in your CSP <c>script-src</c> list (if applicable)</remarks>
        let cdnUnminified =
            script [ _src         $"https://cdn.jsdelivr.net/npm/htmx.org@{HtmxVersion}/dist/htmax.js"
                     _integrity   "sha384-kjhVuvnX3/TsR1qH4JaIcHR6muh/WLMU5CTQRacCQZERzQlP4/r9p/TK7ucFwqvV"
                     _crossorigin "anonymous" ] []
    /// <summary>Script tag to load the minified version from jsdelivr.net</summary>
    [<Obsolete "Use cdnMinified instead; this will be removed in v4">]
    let minified = cdnMinified
@@ -2,14 +2,19 @@
 This package enables [htmx](https://htmx.org) support within the [Giraffe](https://giraffe.wiki) view engine.
-**htmx version: 2.0.8**
+**htmx version: 4.0.0-beta5**
-_Upgrading from v1.x: see [the migration guide](https://htmx.org/migration-guide-htmx-1/) for changes_
+_Upgrading from v2.x: see [the migration guide](https://four.htmx.org/docs/get-started/migration) for changes, which are plentiful. htmx switches from `XMLHTTPRequest` to `fetch`, and many changes are related to the new event cycle._
 _Inheritance is now explicit; to have an attribute's value inherited to its children, wrap the attribute in `hxInherited` (ex. `hxInherited (_hxTarget "#main")`). Values can be appended to inherited values as well using the `hxAppend` modifier._
 _Several constructs have been marked obsolete in this release, and will be removed from the first production release of v4. With the exception of `_hxDisable`, though (which now functions as the deprecated `_hxDisabledElt` did), this should not introduce compile errors. Rather, this package will raise warnings for deprecated constructs, along with suggestions of what to use instead._
 ### Setup
 1. Install the package.
-2. Prior to using the attribute or support modules, `open Giraffe.ViewEngine.Htmx`.
+1. Prior to using the attribute or support modules, `open Giraffe.ViewEngine.Htmx`.
 1. If the client is using the `htmax` bundle, also `open Giraffe.ViewEngine.Htmax`. 
 ### Use
@@ -21,15 +26,18 @@ let autoload =
 ```
 Support modules include:
 - `HxConfig` _(new in v4)_
 - `HxEncoding`
 - `HxHeaders`
- `HxParams`
+- ~~`HxParams`~~ _(removed in v4)_
- `HxRequest`
+- ~~`HxRequest`~~ _(renamed to `HxConfig`)_
 - `HxSwap` (requires `open Giraffe.Htmx`)
 - `HxTrigger`
 - `HxVals`
-`Htmx.Script.local` creates an `XmlNode` to load the package-provided htmx library. There are also two `XmlNode`s that will load the htmx script from jsdelivr; `Htmx.Script.cdnMinified` loads the minified version, and `Htmx.Script.cdnUnminified` loads the unminified version (useful for debugging). When using the CDN nodes and a Content Security Policy (CSP) header, `cdn.jsdelivr.net` needs to be listed as an allowable `script-src`.
+`Htmx.Script.local` creates an `XmlNode` to load the package-provided htmx library. There are also two `XmlNode`s that will load the htmx script from jsdelivr; `Htmx.Script.cdnMinified` loads the minified version, and `Htmx.Script.cdnUnminified` loads the unminified version (useful for debugging). htmx v4 also distributes a "max" bundle which contains some common extensions; these are available with the same names under `Htmx.Script.Max`.
 _NOTE: When using the CDN nodes and a Content Security Policy (CSP) header, `cdn.jsdelivr.net` needs to be listed as an allowable `script-src`._
 This also supports [fragment rendering](https://bitbadger.solutions/blog/2022/fragment-rendering-in-giraffe-view-engine.html), providing the flexibility to render an entire template, or only a portion of it (based on the element's `id` attribute).
@@ -42,10 +50,10 @@ htmx's attributes and these attribute functions map one-to-one. There are two ex
 The htmx `hx-on` attribute supports multiple events if they are separated with a newline (`\n`) character. The value provided to this attribute will be attribute-escaped, but in testing, it was interpreted correctly.
 The support modules contain named properties for known values (as illustrated with `HxTrigger.Load` above). A few of the modules are more than collections of names, though:
- `HxRequest` has a `Configure` function, which takes a list of strings; the other functions in the module allow for configuring the request.
+- `HxConfig` has a `Configure` function, which takes a list of strings; the other functions in the module allow for configuring the request.
 ```fsharp
-HxRequest.Configure [ HxRequest.Timeout 500 ] |> _hxRequest 
+HxConfig.Configure [ HxRequest.Timeout 500 ] |> _hxConfig 
 ```
 - `HxTrigger` is _(by far)_ the most complex of these modules. Most uses won't need that complexity; however, complex triggers can be defined by piping into or composing with other functions. For example, to define an event that responds to a shift-click anywhere on the document, with a delay of 3 seconds before firing:
Author	SHA1	Message	Date
danieljsummers	59b64ed834	v4, beta5 (#20 ) Reviewed-on: #20	2026-06-30 02:03:15 +00:00
danieljsummers	5c12ad7cef	v4, beta4 (#19 ) - Update with header/attribute changes between alpha8 and beta4 - Add support for htmax script, attributes, headers, and extension config Reviewed-on: #19	2026-06-15 01:07:38 +00:00
danieljsummers	d4a7e0c9ce	htmx v4, alpha8 (#18 ) Reviewed-on: #18	2026-03-22 22:21:22 +00:00
danieljsummers	de75672bb3	v4, alpha 6 (#17 ) Reviewed-on: #17	2026-01-07 11:37:26 +00:00