[wp-trac] [WordPress Trac] #31058: audio video previews JS errors in IE 8

[WordPress Trac]

#31058: audio video previews JS errors in IE 8
--------------------------+-----------------------------
 Reporter:  afercia       |      Owner:
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  Media         |    Version:  4.1
 Severity:  normal        |   Keywords:
  Focuses:  javascript    |
--------------------------+-----------------------------
 Noticed a couple of JS errors when browsing prev/next in the attachment
 details modal using Internet Explorer 8: images are fine but as soon as
 you next (or previous) items is a video or audio, the preview is not
 rendered and the prev/next navigation fails.

 It looks like the first error is caused by
 [https://core.trac.wordpress.org/browser/trunk/src/wp-includes/js/media-
 audiovideo.js?rev=31016#L56 this line in media-audiovideo.js]

 {{{
 t.media.remove();
 }}}

 where `t.media` seems to me it's the DOM object and maybe it should be the
 `t.$media` jQuery object instead? See proposed patch.

 About the second JS error, to be honest I gave up but seems it's from
 `mediaelement-and-player.min.js`.

 See errors details below.

 {{{
 Message: Object doesn't support this property or method
 Line: 56
 Char: 5
 Code: 0
 /wp-includes/js/media-audiovideo.js?ver=4.2-alpha-31007-src

 Message: 'parentNode.tagName' is null or not an object
 Line: 15
 Char: 17054
 Code: 0
 /wp-includes/js/mediaelement/mediaelement-and-player.min.js?ver=2.16.2

 }}}

 [[Image(https://cldup.com/5KiNOyCd7r.png)]]

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Ticket URL: <https://core.trac.wordpress.org/ticket/31058>
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