[wp-trac] [WordPress Trac] #43373: Evaluate Async & Defer for Inline WordPress Admin Scripts

[WordPress Trac]

#43373: Evaluate Async & Defer for Inline WordPress Admin Scripts
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 Reporter:  bhubbard                             |      Owner:
     Type:  enhancement                          |     Status:  new
 Priority:  normal                               |  Milestone:  Awaiting
Component:  Script Loader                        |  Review
 Severity:  normal                               |    Version:  trunk
  Focuses:  javascript, administration,          |   Keywords:
  performance                                    |
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 There are many places within WordPress core where script tags are called
 inline. I think WordPress performance could benefit greatly if these were
 reviewed to see if adding async="async" or defer="defer" could improve
 performance. Here are some files and lines examples:

   about.php L316
   admin-footer.php L110
   admin-header.php L77, L198
   media.php L253, L474, L573, plus more

 Not really a full test, but I ran a quick install and did a global find
 and replace within for the following:

 {{{
 <script type="text/javascript">
 <script type="text/javascript" async="async">
 }}}

 I saw some decent performance improvements, and no obvious broken issues.

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Ticket URL: <https://core.trac.wordpress.org/ticket/43373>
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