[wp-trac] [WordPress Trac] #53232: Add async decoding attribute as default to the HTML image tags generated by WordPress

[WordPress Trac]

#53232: Add async decoding attribute as default to the HTML image tags generated by
WordPress
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 Reporter:  isaumya          |       Owner:  (none)
     Type:  feature request  |      Status:  new
 Priority:  normal           |   Milestone:  Awaiting Review
Component:  Media            |     Version:
 Severity:  normal           |  Resolution:
 Keywords:                   |     Focuses:  performance
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Comment (by westonruter):

 Well, using `the_content` is how the `loading` attribute is added. It's
 how core adds `srcset` and `sizes` as well. The performance impact should
 be negligible. True it will be faster when when/if the replacement is done
 inside of `wp_filter_content_tags()` since there is less content to search
 through, but in the meantime a simple `the_content` filter will get you
 `decoding=async` now.

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Ticket URL: <https://core.trac.wordpress.org/ticket/53232#comment:7>
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