aspnetcore (original) (raw)

Backport of #59352

Fix Kestrel host header mismatch handling when port in Url

Fixes some validation of host headers in Kestrel if a non-default port is included in the request url.

Valid requests will result in a 400 error response if they hit this case.
An internal partner team is hitting this currently.

Small bug fix with additional unit test coverage to make sure it works and doesn't regress in the future.