[wp-trac] [WordPress Trac] #29125: Exception when video's meta is not set on wp-view video-playlist.

[WordPress Trac]

#29125: Exception when video's meta is not set on wp-view video-playlist.
----------------------------+-----------------------------
 Reporter:  programmin      |      Owner:
     Type:  defect (bug)    |     Status:  new
 Priority:  normal          |  Milestone:  Awaiting Review
Component:  General         |    Version:  3.9.1
 Severity:  normal          |   Keywords:
  Focuses:  ui, javascript  |
----------------------------+-----------------------------
 In wp-playlists.js, I had this for model.toJSON() just before the
 exception, on standard 2014 theme:

 artists: true
 caption: ""
 description: ""
 dimensions: Object
 image: undefined
 index: 2
 meta: undefined
 src: "url of a .ogv"
 thumb: undefined
 title: "small"
 type: "video/ogg"

 Lack of meta.artist causes exception, which breaks other behavior that
 would run later.

 Stack trace:

 x.template.i underscore.min.js?ver=1.6.0:1
 (anonymous function) wp-util.js?ver=3.9.1:28
 (anonymous function) wp-playlist.js?ver=3.9.1:122
 x.each.x.forEach underscore.min.js?ver=1.6.0:1
 c.each.o.(anonymous function) backbone.min.js?ver=1.1.2:1
 Backbone.View.extend.renderTracks wp-playlist.js?ver=3.9.1:116
 Backbone.View.extend.initialize wp-playlist.js?ver=3.9.1:27
 b.View backbone.min.js?ver=1.1.2:1
 d backbone.min.js?ver=1.1.2:1
 (anonymous function) mce-view.js?ver=3.9.1:584
 n.extend.each jquery.js?ver=1.11.0:2
 n.fn.n.each jquery.js?ver=1.11.0:2
 (anonymous function) mce-view.js?ver=3.9.1:573
 x.each.x.forEach underscore.min.js?ver=1.6.0:1
 wp.mce.media.PlaylistView.wp.mce.View.extend.render mce-
 view.js?ver=3.9.1:569
 n.Callbacks.j jquery.js?ver=1.11.0:2
 n.Callbacks.k.fireWith jquery.js?ver=1.11.0:2
 (anonymous function) media-models.js?ver=3.9.1:777
 n.Callbacks.j jquery.js?ver=1.11.0:2
 n.Callbacks.k.fireWith jquery.js?ver=1.11.0:2
 (anonymous function) wp-util.js?ver=3.9.1:96
 n.Callbacks.j jquery.js?ver=1.11.0:2
 n.Callbacks.k.fireWith jquery.js?ver=1.11.0:2
 x jquery.js?ver=1.11.0:4
 n.ajaxTransport.send.b jquery.js?ver=1.11.0:4

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Ticket URL: <https://core.trac.wordpress.org/ticket/29125>
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