[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:  (none)
     Type:  feature request               |      Status:  new
 Priority:  normal                        |   Milestone:  Awaiting Review
Component:  Media                         |     Version:
 Severity:  normal                        |  Resolution:
 Keywords:  needs-patch needs-unit-tests  |     Focuses:  performance
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Comment (by mor10):

 Adding the new `loading` spec is non-destructive and adds no new loads on
 sites. Adding a JS library adds significant load and complexity. The
 current CanIUse stats for `loading` is based on a week-old release of
 Chrome. It will shoot up very fast. More importantly, WP adding `loading`
 will increase the percentage of sites using the spec exponentially,
 effectively carving a cowpath for the browsers to follow. This is very
 much a question of what role WP wants to play on the web: A leader in
 pushing the web forward, or a stalwart falling back on old tech when new
 solutions exist.

 From my perspective there are two options: Either we implement the
 `loading` spec and move the web forward, or we do nothing. A JS solution
 runs counter to the idea of native lazy-loading and may end up delaying
 the implementation on the web significantly.

 In my opinion.

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Ticket URL: <https://core.trac.wordpress.org/ticket/44427#comment:24>
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