311438 2026-04-03 13:43:44 -0700 [Site Isolation] Missing "Unsafe JavaScript attempt to initiate navigation" log in http/tests/security/block-top-level-navigations-by-third-party-sandboxed-iframe.html 2026-04-08 11:07:58 -0700 1 1 1 Unclassified WebKit Tools / Tests WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED InRadar P2 Normal --- 1 a.tarbinian webkit-unassigned webkit-bug-importer oldest_to_newest 2196683 0 a.tarbinian 2026-04-03 13:43:44 -0700 With site isolation enabled, http/tests/security/block-top-level-navigations-by-third-party-sandboxed-iframe.html doesn't print the log message: ``` CONSOLE MESSAGE: Unsafe JavaScript attempt to initiate navigation for frame with URL 'http://127.0.0.1:8000/security/block-top-level-navigations-by-third-party-sandboxed-iframe.html' from frame with URL 'data:text/html;base64,PGh0bWw+PGJvZHk+U3VjY2VzcyEgVGhlIG5hdmlnYXRpb24gd2FzIGJsb2NrZWQ8c2NyaXB0IHR5cGU9InRleHQvamF2YXNjcmlwdCI+IHdpbmRvdy50b3AubG9jYXRpb24gPSAiaHR0cDovL2xvY2FsaG9zdDo4MDAwL3NlY3VyaXR5L3Jlc291cmNlcy9zaG91bGQtbm90LWhhdmUtbG9hZGVkLmh0bWwiOzwvc2NyaXB0PjwvYm9keT48L2h0bWw+'. The frame attempting navigation of the top-level window is cross-origin or untrusted and the user has never interacted with the frame. ``` 2196684 1 webkit-bug-importer 2026-04-03 13:43:50 -0700 <rdar://problem/174036322> 2196693 2 a.tarbinian 2026-04-03 14:28:37 -0700 Pull request: https://github.com/WebKit/WebKit/pull/61994 2198033 3 ews-feeder 2026-04-08 11:07:56 -0700 Committed 310789@main (db1d09a2c44b): <https://commits.webkit.org/310789@main> Reviewed commits have been landed. Closing PR #61994 and removing active labels.