[wp-trac] [WordPress Trac] #39686: Upgrade MediaElement to 4.X

[WordPress Trac]

#39686: Upgrade MediaElement to 4.X
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 Reporter:  rafa8626            |       Owner:
     Type:  enhancement         |      Status:  closed
 Priority:  high                |   Milestone:  4.9
Component:  External Libraries  |     Version:  4.7.1
 Severity:  normal              |  Resolution:  fixed
 Keywords:  needs-dev-note      |     Focuses:  accessibility, javascript
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Comment (by rafa8626):

 @westonruter Thanks for the suggestion. @jbpaul17 here's my Dev Note:

 {{{
 MediaElement has been upgraded to 4.2.6, which includes, among lots of bug
 fixes:

 * UI with flexbox
 * Improvements in controls Accessibility
 * Stopped support for old browsers (supports IE11+, Chrome, FF, Safari,
 Android 4+ and iOS 8+)
 * Upgraded YouTube and Vimeo renderers to use new APIs
     (for Vimeo, it uses now https://player.vimeo.com/api/player.js, since
 Froogaloop is now deprecated)

 As a special note for WP developers: In order to create themes compatible
 with it, it is required to add
 the classPrefix: 'mejs-' in the player configuration, since latest version
 of MEJS switched to
 BEM naming convention.
 }}}

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Ticket URL: <https://core.trac.wordpress.org/ticket/39686#comment:119>
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