[wp-trac] [WordPress Trac] #30646: oEmbed preview loading does not trigger editor scrolling

[WordPress Trac]

#30646: oEmbed preview loading does not trigger editor scrolling
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 Reporter:  celloexpressions  |       Owner:
     Type:  defect (bug)      |      Status:  new
 Priority:  normal            |   Milestone:  4.2
Component:  TinyMCE           |     Version:  4.0
 Severity:  minor             |  Resolution:
 Keywords:  has-patch         |     Focuses:  javascript
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Comment (by azaozz):

 Right, nodeChanged is used for UI updates but also for selection/caret
 range updates (most notably in IE). My concern is that the iframe resize
 function is fired with mutationObserver that may trigger several times in
 a very short time while we are trying to use/update the same
 selection/caret range. This could result in race condition.

 On the other hand comparing the iframe height to the iframe's body height
 before resizing reduces the number of times we fire nodeChanged, so it
 shouldn't fire excessively. Good way to test this is by embedding a
 "twit", fires only two times here.

 Lets add it and see if there will be any problems in IE.

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Ticket URL: <https://core.trac.wordpress.org/ticket/30646#comment:5>
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