[wp-trac] [WordPress Trac] #44427: Introduce lazy-loading API for media and other elements

[WordPress Trac]

#44427: Introduce lazy-loading API for media and other elements
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 Reporter:  mor10                                |       Owner:  flixos90
     Type:  feature request                      |      Status:  assigned
 Priority:  normal                               |   Milestone:  5.5
Component:  Media                                |     Version:
 Severity:  normal                               |  Resolution:
 Keywords:  has-patch has-unit-tests 2nd-        |     Focuses:
  opinion early                                  |  performance
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Changes (by flixos90):

 * keywords:  has-patch has-unit-tests 2nd-opinion => has-patch has-unit-
     tests 2nd-opinion early


Comment:

 With the 5.4 beta deadline being today, the goal is to refine the
 [https://github.com/WordPress/wp-lazy-loading feature plugin] over the
 next few weeks, get more testing, and then create a core patch. This
 should be merged early in the 5.5 release cycle.

 Moving this to 5.5 should furthermore ensure that the
 [https://github.com/whatwg/html/pull/3752 WHATWG spec for lazy-loading] is
 merged before this is included in WordPress core.

 However, it should be clarified in general that it is a strict requirement
 for WordPress core to only ship this as the spec is merged. Even if it
 gets committed without the spec being merged (to get more testing), if the
 spec is not merged before RC phase of the WordPress release cycle, the
 feature should be pulled out again.

 I will soon publish a follow-up on the make blog explaining in more
 detail.

-- 
Ticket URL: <https://core.trac.wordpress.org/ticket/44427#comment:94>
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