[FAIL] System.Net.Http.Functional.Tests.PlatformHandler_HttpClientHandler_Http2_Test.SendAsync_RequestWithLatin1HeaderValue_Succeeds(safeChar: 0x00a0, headerType: Request)
System.Net.Http.HttpRequestException : Error while copying content to a stream.
---- System.IO.IOException : The read operation failed, see inner exception.
-------- System.Net.Http.WinHttpException : Error 12030 calling WINHTTP_CALLBACK_STATUS_REQUEST_ERROR, 'The connection with the server was terminated abnormally'.
at System.Net.Http.HttpContent.LoadIntoBufferAsyncCore(Task, HttpContent.LimitArrayPoolWriteStream) in /_/src/libraries/System.Net.Http/src/System/Net/Http/HttpContent.cs:line 524
at System.Net.Http.HttpClient.<SendAsync>g__Core|83_0(HttpRequestMessage, HttpCompletionOption, CancellationTokenSource, Boolean, CancellationTokenSource, CancellationToken) in /_/src/libraries/System.Net.Http/src/System/Net/Http/HttpClient.cs:line 556
{
"ErrorMessage": ["System.Net.Http.Functional.Tests.PlatformHandler", "WINHTTP_CALLBACK_STATUS_REQUEST_ERROR"],
"ErrorPattern": "",
"BuildRetry": false,
"ExcludeConsoleLog": false
}
This looks related to #126867 but that test is now disabled.
Build Information
Build: https://dev.azure.com/dnceng-public/cbb18261-c48f-4abb-8651-8cdcb5474649/_build/results?buildId=1564826
Build error leg or test failing: System.Net.Http.Functional.Tests.PlatformHandlerTest_Cookies_Http2.GetAsync_NoPathDefined_CookieAddedWithDefaultPath
Pull request: #131526
Error Message
DO NOT USE JSON BELOW IF THIS IS A BUILD BREAK otherwise build analysis will allow pull requests to merge that break the build worse. For a build break, do not use this issue form. Make a regular new issue.
Fill the error message using step by step known issues guidance.
{ "ErrorMessage": ["System.Net.Http.Functional.Tests.PlatformHandler", "WINHTTP_CALLBACK_STATUS_REQUEST_ERROR"], "ErrorPattern": "", "BuildRetry": false, "ExcludeConsoleLog": false }Known issue validation
Build: 🔎 https://dev.azure.com/dnceng-public/public/_build/results?buildId=1564826
Error message validated:
[System.Net.Http.Functional.Tests.PlatformHandler WINHTTP_CALLBACK_STATUS_REQUEST_ERROR]Result validation: ✅ Known issue matched with the provided build.
Validation performed at: 8/24/2026 9:25:03 PM UTC
Report
Summary