[wp-trac] [WordPress Trac] #36545: WordPress TinyMCE toolbar/tabs unresponsive in Chrome Version 50.0.2661.75 beta-m (64-bit)

[WordPress Trac]

#36545: WordPress TinyMCE toolbar/tabs unresponsive in Chrome Version 50.0.2661.75
beta-m (64-bit)
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 Reporter:  doncullen                        |       Owner:
     Type:  defect (bug)                     |      Status:  new
 Priority:  normal                           |   Milestone:  Awaiting
Component:  TinyMCE                          |  Review
 Severity:  normal                           |     Version:  4.5
 Keywords:  needs-testing reporter-feedback  |  Resolution:
                                             |     Focuses:
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Comment (by swissspidy):

 I got the same error using version 50.0.2661.75 (64-bit) when adding a
 link and then trying to use the tab key to navigate inside the link
 dialog. Even when disabling all plugins and using incognito mode. To
 reproduce:

 1. Edit a post
 2. Press Cmd+K
 3. Press tab

 Notice `tinymce.js?ver=4308-20160323:38446 Uncaught TypeError: Cannot read
 property 'ownerDocument' of undefined` in the console.

 The error is in tinymce.js:

 {{{
 // Check if focus is moved to an element outside the active editor by
 checking if the target node
                         // isn't within the body of the activeEditor nor a
 UI element such as a dialog child control
                         if (!documentFocusInHandler) {
                                 documentFocusInHandler = function(e) {
                                         var activeEditor =
 editorManager.activeEditor;

                                         if (activeEditor &&
 e.target.ownerDocument == document) {
 }}}

 So definitely a bug in TinyMCE itself, though I haven't tested with the
 most recent version of it.

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Ticket URL: <https://core.trac.wordpress.org/ticket/36545#comment:10>
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