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WICG / interventions

A place for browsers and web developers to collaborate on user agent interventions.
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Lower loading priority of cross-origin iframes #1

Closed rschoen closed 7 years ago

rschoen commented 8 years ago

Cross-origin iframes are typically secondary content to the main content of the page. Therefore, it may be beneficial to the user to lower the priority of (or perhaps fully delay?) cross-origin iframes until the main content has loaded. This would decrease network and CPU contention, and ideally dramatically improve the load of the main page.

Since most browsers already have the notion of priority, this could be fairly simple to experiment with.

tigt commented 8 years ago

This works excellently for ads, but cramps audio and video embeds, since those are often delegated to platforms like YouTube or Soundcloud. Sometimes those embeds are the entire point of a given post, like Tumblr's Audio and Video post types.

hillbrad commented 7 years ago

Please see discussion on https://github.com/WICG/interventions/issues/10

Cross-origin iframes and postMessage are an important (the best, fastest and safest) cross-origin API channel available to client-side web apps. Throttle hoggy ads, fine, but please don't break the best API toolkit we have. :(

Maybe a 'nice' attribute on iframes, as suggested in #10 ?

ojanvafai commented 7 years ago

We didn't have much success here actually making things load better. Some of that is likely due to implementation details. Closing for now. Will reopen if we reconsider or if another browser decides to experiment.