[Webkit-unassigned] [Bug 200128] New: HTTP requests made by HTMLMediaElement are not canceled even after the element is removed

Thu Jul 25 09:39:18 PDT 2019

https://bugs.webkit.org/show_bug.cgi?id=200128

            Bug ID: 200128
           Summary: HTTP requests made by HTMLMediaElement are not
                    canceled even after the element is removed
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Media
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: aboya at igalia.com

When debugging video_timeupdate_on_seek.html in Safari (added as part of this patch https://bugs.webkit.org/show_bug.cgi?id=199719) I noticed the test always timed out.

This test is quite particular in that the video is loaded from a special server endpoint (`timeout_on_seek.py`) which refuses to serve certain regions of the file but not sending any data and letting the request time out. (For context on why: That allows to test expected behaviors that should happen strictly before data is received from the server.)

Eventually the test finishes, test.done() is called and the HTMLMediaElement is removed from <body>. But on Safari the request is still often alive for a long time, until it times out many seconds later. This seems to make the test runner timeout, even when all the tests signaled as "done". Changing the `src` attribute does not help.

This problem is not apparent on other platforms, including iOS.

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