The tests added in https://bugs.webkit.org/show_bug.cgi?id=168347 crash on Sierra 64-bit release builds. However, they don't on my machine. We should skip the test cases while we investigate.
Test cases skipped as of http://trac.webkit.org/changeset/212800.
<rdar://problem/30646710>
I am able to reproduce the problems locally with a release build. Let me know if you need any assistance debugging.
(In reply to comment #3) > I am able to reproduce the problems locally with a release build. Let me > know if you need any assistance debugging. That's good news since I did try myself before I filed this. Let's look at it tomorrow.
LayoutTest http/tests/security/contentSecurityPolicy/1.1/frame-ancestors/frame-ancestors-nested-cross-in-cross-self-block.html also seems to be affected by this crash: https://build.webkit.org/results/Apple%20Sierra%20Release%20WK2%20(Tests)/r212828%20(3805)/results.html
Also seen with http/tests/media/video-error-abort.html here: https://build.webkit.org/results/Apple%20Sierra%20Debug%20WK2%20(Tests)/r212823%20(2205)/results.html
I also hit this with: http/tests/plugins/geturlnotify-from-npp-destroystream.html
These needs to be done, but no need to track in a bug since the patch got rolled out.