311303 2026-04-01 17:00:42 -0700 [Site Isolation] Extra result for http/tests/security/file-system-access-via-dataTransfer.html 2026-04-03 13:12:48 -0700 1 1 1 Unclassified WebKit New Bugs WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED InRadar P2 Normal --- 1 a.tarbinian webkit-unassigned webkit-bug-importer oldest_to_newest 2196080 0 a.tarbinian 2026-04-01 17:00:42 -0700 With Site Isolation enabled http/tests/security/file-system-access-via-dataTransfer.html prints out 4 instances of "Should not receive a file" while the -expected.txt only has 3 logs of that message https://github.com/WebKit/WebKit/blob/b3d35bb8ab6482329d4d5e6c4737548156a49279/LayoutTests/http/tests/security/file-system-access-via-dataTransfer-expected.txt When running the test with site isolation disabled and without the "finishJSTest" calls and letting it timeout, it does indeed print the message 4 times. I believe that the last message being printed is suppressed and enabling site isolation changes some timing that allows the 4th one to be observed. Here is the diff with site isolation enabled vs. the current -expected.txt. Note how it gets printed a 4th time, but after "TEST COMPLETE" hinting that the message is logged asynchronously after "finishJSTest" is called. ``` Test that accessing local file system metadata is not allowed On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". PASS Should not receive file PASS Should not receive file PASS Should not receive file PASS successfullyParsed is true TEST COMPLETE + PASS Should not receive file ``` 2196081 1 webkit-bug-importer 2026-04-01 17:00:48 -0700 <rdar://problem/173894915> 2196082 2 a.tarbinian 2026-04-01 17:03:52 -0700 Pull request: https://github.com/WebKit/WebKit/pull/61865 2196677 3 ews-feeder 2026-04-03 13:12:46 -0700 Committed 310534@main (5b1ce0d64d86): <https://commits.webkit.org/310534@main> Reviewed commits have been landed. Closing PR #61865 and removing active labels.