Contact emailsyo...@google.com Specificationhttps://html.spec.whatwg.org/#lazy-load-root-margin
Design docs https://gist.github.com/tcaptan-cr/bf0ac25f77cb6b6c58c916e6577d91c3 Summary Changes the lazy load intersection observer's init dictionary to use a scrollMargin instead of a rootMargin. This allows lazy loading iframes contained inside CSS scrollers, like carousels, to load as expected when near the viewport instead of the current behavior where these iframes load when at least one pixel is intersecting the viewport. Blink componentBlink>Paint <https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink%3EPaint> Search tagslazyload <https://chromestatus.com/features#tags:lazyload>, scrollmargin <https://chromestatus.com/features#tags:scrollmargin> TAG reviewNone TAG review statusNot applicable Risks Interoperability and Compatibility Overall low as scroll margin also applies to the root element thus not affecting lazy loading iframes that are currently loading with just a root margin. *Gecko*: No signal *WebKit*: No signal *Web developers*: No signals *Other signals*: WebView application risks Does this intent deprecate or change behavior of existing APIs, such that it has potentially high risk for Android WebView-based applications? None Debuggability None Will this feature be supported on all six Blink platforms (Windows, Mac, Linux, ChromeOS, Android, and Android WebView)?Yes Is this feature fully tested by web-platform-tests <https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md> ?Yes The following tests are testing this feature: https://wpt.fyi/results/html/semantics/embedded-content/the-iframe-element/iframe-loading-lazy-in-scroller.html?label=master&label=experimental&aligned https://wpt.fyi/results/html/semantics/embedded-content/the-iframe-element/iframe-loading-lazy-in-scroller-far.html?label=master&label=experimental&aligned https://wpt.fyi/results/html/semantics/embedded-content/the-iframe-element/iframe-loading-lazy-in-scroller-horizontal-far.html?label=master&label=experimental&aligned https://wpt.fyi/results/html/semantics/embedded-content/the-iframe-element/iframe-loading-lazy-in-scroller-horizontal.html?label=master&label=experimental&aligned https://wpt.fyi/results/html/semantics/embedded-content/the-iframe-element/iframe-loading-lazy-in-scroller-nested-2.html?label=master&label=experimental&aligned https://wpt.fyi/results/html/semantics/embedded-content/the-iframe-element/iframe-loading-lazy-in-scroller-nested-3.html?label=master&label=experimental&aligned https://wpt.fyi/results/html/semantics/embedded-content/the-iframe-element/iframe-loading-lazy-in-scroller-nested-4.html?label=master&label=experimental&aligned https://wpt.fyi/results/html/semantics/embedded-content/the-iframe-element/iframe-loading-lazy-in-scroller-nested-5.html?label=master&label=experimental&aligned https://wpt.fyi/results/html/semantics/embedded-content/the-iframe-el Flag name on chrome://flagsLazyLoadScrollMarginIframe Finch feature nameLazyLoadScrollMarginIframe Requires code in //chrome?False Tracking bughttps://issues.chromium.org/issues/40943726 Estimated milestones No milestones specified Anticipated spec changes None Link to entry on the Chrome Platform Status https://chromestatus.com/feature/6292561099751424 This intent message was generated by Chrome Platform Status <https://chromestatus.com/>. -- You received this message because you are subscribed to the Google Groups "blink-dev" group. To unsubscribe from this group and stop receiving emails from it, send an email to blink-dev+unsubscr...@chromium.org. To view this discussion on the web visit https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAAOtuibiA-z7yxodefog2s%2BMv1ejOvTtZP6YV8ijvF1zzEHW4A%40mail.gmail.com.
