Fix POST rendering without disabling the "stop render" signal.

ilonatommy · ilonatommy · commit c6465d0d15e2 · 2025-06-13T18:40:30.000+02:00
diff --git a/src/Components/Endpoints/src/Rendering/EndpointHtmlRenderer.EventDispatch.cs b/src/Components/Endpoints/src/Rendering/EndpointHtmlRenderer.EventDispatch.cs
@@ -81,7 +81,10 @@ private Task ReturnErrorResponse(string detailedMessage)
 
     internal async Task SetNotFoundResponseAsync(string baseUri, NotFoundEventArgs args)
     {
-        if (_httpContext.Response.HasStarted)
+        if (_httpContext.Response.HasStarted ||
+            // POST waits for quiescence -> rendering the NotFoundPage would be queued for the next batch
+            // but we want to send the signal to the renderer to stop rendering future batches -> use client rendering
+            string.Equals(_httpContext.Request.Method, "POST", StringComparison.OrdinalIgnoreCase))
         {
             if (string.IsNullOrEmpty(_notFoundUrl))
             {

Original file line number	Diff line number	Diff line change
`@@ -81,7 +81,10 @@ private Task ReturnErrorResponse(string detailedMessage)`
`81`	`81`
`82`	`82`	`internal async Task SetNotFoundResponseAsync(string baseUri, NotFoundEventArgs args)`
`83`	`83`	`{`
`84`		`- if (_httpContext.Response.HasStarted)`
	`84`	`+ if (_httpContext.Response.HasStarted \|\|`
	`85`	`+ // POST waits for quiescence -> rendering the NotFoundPage would be queued for the next batch`
	`86`	`+ // but we want to send the signal to the renderer to stop rendering future batches -> use client rendering`
	`87`	`+ string.Equals(_httpContext.Request.Method, "POST", StringComparison.OrdinalIgnoreCase))`
`85`	`88`	`{`
`86`	`89`	`if (string.IsNullOrEmpty(_notFoundUrl))`
`87`	`90`	`{`