This test has been a flaky timeout since it was unskipped in r257283 on macOS wk1 debug.
@@ -1,3 +1,4 @@
+FAIL: Timed out waiting for notifyDone to be called
This test runs the WebGL Test listed below in an iframe and reports PASS or FAIL.
Set expectations here: https://trac.webkit.org/changeset/258912/webkit
James, could you please see whether this has been fixed by Bug 214211?
This appears to remain a flaky timeout on WK1 debug.
This test seems to run very quickly, so it's strange that it would time out flakily in Debug builds. James is OOO for the moment; if this is urgent can anyone else investigate it?