The *reference* (not the test itself) renders blank.
Currently the test is flaky, and it times out on the first run frequently. Updating expectation and title of the bug.
The test started to pass after r241120 ([WPE] Implement GStreamer based holepunch https://bugs.webkit.org/show_bug.cgi?id=193715). I removed the test from WPE/TextExpectations in https://trac.webkit.org/changeset/243930/webkit. OTOH, the test is not present in GTK/TestExpectations. Perhaps this bug can be closed.
There are no references to this bug in any TestExpectations. It's probable this bug was solved at some point but it wasn't marked as closed. I'm closing this bug now. If you think this bug report is still valid, please reopen it and add an entry to TestExpectations.
<rdar://problem/104679812>