[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:  5.4
Component:  Media                                |     Version:
 Severity:  normal                               |  Resolution:
 Keywords:  has-patch has-unit-tests 2nd-        |     Focuses:
  opinion                                        |  performance
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Comment (by OptimizingMatters):

 Replying to [comment:39 flixos90]:
 > I'd also like to confirm @addyosmani's point about interoperability:
 Sites that currently use a JavaScript-based approach for lazy-loading
 won't be affected, as for these solutions there most likely won't be a
 `src` attribute on the images.

 Late feedback; a lot of lazy-loading plugins actually do use a `src`
 attribute to hold a "dummy image", often a data uri. This means the
 presence of a `src` attribute does not ensure automatic interoperability.

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Ticket URL: <https://core.trac.wordpress.org/ticket/44427#comment:88>
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