TinyMCE Visual Mode not working

[Lokimo]

After updating to 4.2-RC1-32138 i can no longer use the Visual Mode of tinyMCE Editor (with firefox 37 and Chrome 41)

When i pase in Text in the Visual mode and switch to Text mode the Text dissapears.

Also when i save it directly no content is saved. I get an error

TypeError: a.ownerDocument.defaultView.getComputedStyle(...) is nul .../wp-includes/js/tinymce/wp-tinymce.php?c=1&ver=4109-20150406Line 5

[azaozz]

Cannot reproduce. The weird thing is: ownerDocument.defaultView is used only in one place in TinyMCE: in the DomQuery.css() (similar to jQuery's css()) ​https://github.com/tinymce/tinymce/blob/master/js/tinymce/classes/dom/DomQuery.js#L526

However the code there is wrapped in a try{} catch(){}, not sure how it triggers that error. And since this is in the compressed wp-tinymce.js.gz file, don't think it can be "corrupted file" either...

@Lokimo can you try adding SCRIPT_DEBUG to wp-confing.php and see if that fixes it or at least the error changes: ​https://codex.wordpress.org/Debugging_in_WordPress

[m_i_n]

I think this issue might me related: #31901.

[Lokimo]

@azaozz Okay @m_i_n was right, #31901 is the same issue. This could be closed. Thanks a lot.

[Lokimo]

Duplicate of #31901.