The tests:

http/tests/security/isolatedWorld/bypass-main-world-csp-for-inline-style.html
http/tests/security/isolatedWorld/bypass-main-world-csp-for-xhr.html
http/tests/security/isolatedWorld/bypass-main-world-csp-iframes.html
http/tests/security/isolatedWorld/events.html

appear to be flaky when run in random order. Steps to reproduce:

This should pass consistently:
Tools/Scripts/run-layout-tests http/tests/security/isolatedWorld

This should fail intermittently:
Tools/Scripts/run-layout-tests http/tests/security/isolatedWorld --order=random

We're working on removing order dependency from Blink layout tests. More context here:
https://docs.google.com/document/d/11-628Ny6hY__kfIv__zVD0m3rA0OB9tQLLC_gJI_PNg/edit
 

The tests:

http/tests/security/isolatedWorld/bypass-main-world-csp-for-inline-style.html
http/tests/security/isolatedWorld/bypass-main-world-csp-for-xhr.html
http/tests/security/isolatedWorld/bypass-main-world-csp-iframes.html
http/tests/security/isolatedWorld/events.html

appear to be flaky when run in random order. Steps to reproduce:

This should pass consistently:
Tools/Scripts/run-webkit-tests http/tests/security/isolatedWorld

This should fail intermittently:
Tools/Scripts/run-webkit-tests http/tests/security/isolatedWorld --order=random

We're working on removing order dependency from Blink layout tests. More context here:
https://docs.google.com/document/d/11-628Ny6hY__kfIv__zVD0m3rA0OB9tQLLC_gJI_PNg/edit