NEW 140262
Setting iframe src clears undo stack 
https://bugs.webkit.org/show_bug.cgi?id=140262
Summary Setting iframe src clears undo stack
Max Vujovic
Reported 2015-01-08 11:41:38 PST
Filing this for a colleague who ran into it. In Safari, if you load an iframe while typing in a text input, undo stops working in the text input. Here's a reproduction: http://jsfiddle.net/4qsfya3a/2/ It's been mentioned on stackoverflow before: http://stackoverflow.com/questions/10810246/iframe-load-clears-browser-undo-stack Which has another reproduction: http://jsfiddle.net/N6t8P/6/ The stackoverflow question implies it's also broken in Chrome. However, I've found this works correctly in latest Chrome and Firefox (didn't try IE).
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Add attachment proposed patch, testcase, etc.
Radar WebKit Bug Importer
Comment 1 2015-09-15 10:52:23 PDT
<rdar://problem/22704530>
Ahmad Saleem
Comment 2 2022-10-16 04:32:19 PDT
I am able to reproduce this bug in Safari 16 and Safari Technology Preview 155 using attached test case and CMD+Z opens previous closed tab (if not in Private Mode). Both Chrome Canary 108 and Firefox Nightly 107 also has differences where Firefox do CMD+Z and remove all text, Chrome go character by character. Just wanted to update latest results. Thanks!
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