See the links in https://mail.mozilla.org/pipermail/es-discuss/2014-July/038524.html which show Safari violating ES internal method invariants. I would appreciate responses to that thread with an indication of how you propose the invariant violation be resolved so I can spec it.
From the attached URL, I took two test cases from Mozilla: Test Case 1 - https://bug1043690.bmoattachments.org/attachment.cgi?id=8463423 Test Case 2 - https://bug1043690.bmoattachments.org/attachment.cgi?id=8463432 Output from all browsers: *** Safari 15.6 on macOS 12.5 *** <Test Case 1> {"value":"[object HTMLInputElement]","writable":false,"enumerable":false,"configurable":true} [object HTMLInputElement] {"value":"http://www.mozilla.org","writable":false,"enumerable":false,"configurable":false} http://www.mozilla.org <Test Case 2> undefined undefined {"value":"http://www.mozilla.org","writable":false,"enumerable":false,"configurable":false} http://www.mozilla.org {"value":"http://www.mozilla.org","writable":false,"enumerable":false,"configurable":false} http://www.mozilla.org *** Chrome Canary 106 *** <Test Case 1> {"value":"[object HTMLInputElement]","writable":false,"enumerable":false,"configurable":true} [object HTMLInputElement] <Test Case 2> undefined undefined {"value":"http://www.mozilla.org","writable":false,"enumerable":false,"configurable":false} http://www.mozilla.org {"value":"[object HTMLInputElement]","writable":false,"enumerable":false,"configurable":true} [object HTMLInputElement] *** Firefox Nightly 105 *** <Test Case 1> {"value":"[object HTMLInputElement]","writable":false,"enumerable":false,"configurable":true} [object HTMLInputElement] <Test Case 2> undefined undefined {"value":"http://www.mozilla.org","writable":false,"enumerable":false,"configurable":false} http://www.mozilla.org {"value":"http://www.mozilla.org","writable":false,"enumerable":false,"configurable":false} http://www.mozilla.org ______________________ Just wanted to show latest results, as can be seen Safari 15.6 do differ on Test Case 1 from both browsers but match with Firefox Nightly 105 in Test Case 2. Appreciate if someone can look into it and if Safari is still in violation and something needs to be fixed, they can comment accordingly. Thanks!
(In reply to Ahmad Saleem from comment #1) > Just wanted to show latest results, as can be seen Safari 15.6 do differ on > Test Case 1 from both browsers but match with Firefox Nightly 105 in Test > Case 2. > > Appreciate if someone can look into it and if Safari is still in violation > and something needs to be fixed, they can comment accordingly. Thanks! Thanks Ahmad, it's a known inconsistency around internal methods of legacy platform objects (namely [[DefineOwnProperty]] and <form> element are trickiest ones), which is being fixed in https://bugs.webkit.org/show_bug.cgi?id=218849. *** This bug has been marked as a duplicate of bug 218849 ***