Change Details

This should be straightforward to implement, at least for regular article thumbnails. We should ensure that the attribute doesn't show up Mobile Frontend, in order to avoid any potential conflicts with its JS-based image lazy loading. The expected impact is likely to be big on our large articles: https://twitter.com/TheRealNooshu/status/1163827485076799489 This should be behind a configuration flag, so we can roll this out to specific wikis to measure the impact.

This should be straightforward to implement, at least for regular article thumbnails. We should ensure that the attribute doesn't show up Mobile Frontend, in order to avoid any potential conflicts with its JS-based image lazy loading. The expected impact is likely to be big on our large articles: https://twitter.com/TheRealNooshu/status/1163827485076799489 This will be tested on eswiki and ruwiki for a week, to see the impact on RUM metrics and on perceived performance survey responses.

This should be straightforward to implement, at least for regular article thumbnails. We should ensure that the attribute doesn't show up Mobile Frontend, in order to avoid any potential conflicts with its JS-based image lazy loading. The expected impact is likely to be big on our large articles: https://twitter.com/TheRealNooshu/status/1163827485076799489 This shouldwill be behind a configuration flagtested on eswiki and ruwiki for a week, so we can roll this out to specific wikis to measure the impactto see the impact on RUM metrics and on perceived performance survey responses.