NEW 241432
execCommand('undo') allows to restore closed tabs from HTML 
https://bugs.webkit.org/show_bug.cgi?id=241432
Summary execCommand('undo') allows to restore closed tabs from HTML
Ahmad Saleem
Reported 2022-06-08 13:20:39 PDT
Hi Team, I hope you are doing great. Based on below attached JS Fiddle, I am able to reopen closed tabs (CMD+SHIFT+T) behavior via HTML. JSFiddle - https://jsfiddle.net/tg3njfmu/1/show/ HTML - <button onclick="document.execCommand('undo', false, null);">undo</button> NOTE - Tab Reopening does not work in "Private Mode". Expected Results - It should not reopen "closed tabs" like other browsers. Actual Results - In non-private window, it reopens "closed tabs". I noticed that Google Chrome team changed it deeming possible security risks in following commit - https://chromium.googlesource.com/chromium/src/+/512508f0d652a006407ce66aafcd339b296a5276 Appreciate if you can look into this. Thanks!
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Radar WebKit Bug Importer
Comment 1 2022-06-15 13:21:22 PDT
<rdar://problem/95233426>
Ryosuke Niwa
Comment 2 2022-06-23 22:14:55 PDT
This is a pretty well known old bug. Fixing it basically means we'll be decoupling WebKit's undo stack from application's NSUndoManager so there are some interesting implications.
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