I just landed `PaintTimingMixin` for `PerformancePaintTiming` and `LargestContentfulPaint` interfaces on Bug 1963464 <https://bugzilla.mozilla.org/show_bug.cgi?id=1963464>, without the `presentationTime`. This mixin has a non-nullable `paintTime` attribute and a nullable `presentationTime` attribute. We currently return null for the presentationTime as browsers might choose to not include this information. We intend to add this time information in Bug 1950098 <https://bugzilla.mozilla.org/show_bug.cgi?id=1950098>, but will do it as a follow-up work.
This will make the timing numbers more explicit for web developers when they try to see which number we support. Bug: Bug 1963464 <https://bugzilla.mozilla.org/show_bug.cgi?id=1963464> Standards Body: W3C Platform coverage: All Link to standards-positions discussion: https://github.com/mozilla/standards-positions/issues/1110 Other browsers: * Blink: Shipped since version 133 * WebKit: Considering ( https://github.com/WebKit/standards-positions/issues/426) web-platform-tests: https://wpt.fyi/results/paint-timing?label=experimental&label=master&aligned and https://wpt.fyi/results/largest-contentful-paint?label=experimental&label=master&aligned Best, Nazım Can -- You received this message because you are subscribed to the Google Groups "dev-platform@mozilla.org" group. To unsubscribe from this group and stop receiving emails from it, send an email to dev-platform+unsubscr...@mozilla.org. To view this discussion visit https://groups.google.com/a/mozilla.org/d/msgid/dev-platform/CA%2BFasUPFFONKSENofBAsKrbMsxE9cAm7r9rehczPO0O9-rimeQ%40mail.gmail.com.
