1956809 - Enable PerformanceEventTiming.interactionId

Status: RESOLVED FIXED

(Core :: DOM: Performance APIs, task, P3)

Description

[Nazım Can Altınova [:canova][:canaltinova on phabricator]]

We implemented PerformanceEventTiming.interactionId behind a pref in bug 1934683. Currently there are some spec issues, which are also mentioned in that bug. We should enable the dom.performance.event_timing.enable_interactionid pref once the spec issues and wpt test issues are resolved.

Comment 1

[Sean Feng [:sefeng211]]

We can also enable it in Nightly only first, so that we can get interop numbers

Comment 2

[Nazım Can Altınova [:canova][:canaltinova on phabricator]]

Yeah, that's a good idea. I can file a new bug for enabling it on Nightly. Do you think we should do it now/soon or after some spec PRs are created?

Comment 3

[Sean Feng [:sefeng211]]

I think we can do it now, because Nightly isn't considered as shipped..so nobody should complaint about that :)

Comment 4

[Nazım Can Altınova [:canova][:canaltinova on phabricator]]

Sounds good, will do it in bug 1957012!

Comment 5

[Nazım Can Altınova [:canova][:canaltinova on phabricator]]

Attachment: Bug 1956809 - Enable PerformanceEventTiming.interactionId and let it ride the train r?sefeng,smaug

Comment 6

[Pulsebot]

Pushed by [e-mail]:
https://github.com/mozilla-firefox/firefox/commit/e711fa3b83c8
https://hg.mozilla.org/integration/autoland/rev/f529ddaca9b3
Enable PerformanceEventTiming.interactionId and let it ride the train r=smaug

Comment 7

[Iulian Moraru]

https://hg.mozilla.org/mozilla-central/rev/f529ddaca9b3

Comment 8

[Donal Meehan [:dmeehan]]

:canova, we can add a release note for this now that it's enabled (Process info)

The following wording was used when this was nightly only. Any changes, or do you want to use the same wording?

Firefox now supports PerformanceEventTiming.interactionId, allowing developers to group related input events. This enables support for the Interaction to Next Paint (INP) responsiveness metric.

Comment 9

[Nazım Can Altınova [:canova][:canaltinova on phabricator]]

Yes, it would be great to add a release note for it. The same wording looks good to me.

(pasting my previous relnotes request for posterity)

Release Note Request (optional, but appreciated)
[Why is this notable]:
This adds support for the interactionId attribute in the PerformanceEventTiming API, which is used to calculate the "Interaction to Next Paint" (INP) metric—part of Core Web Vitals. It helps analyze responsiveness and debug long task delays by grouping related input events.
[Affects Firefox for Android]: Yes
[Suggested wording]:
Added support for PerformanceEventTiming.interactionId, allowing developers to group related input events. This enables support for the Interaction to Next Paint (INP) responsiveness metric.
[Links (documentation, blog post, etc)]:
https://developer.mozilla.org/en-US/docs/Web/API/PerformanceEventTiming/interactionId
https://developer.mozilla.org/en-US/docs/Glossary/Interaction_to_next_paint
https://web.dev/articles/inp

Comment 10

[Donal Meehan [:dmeehan]]

Thanks, added to the Fx144 nightly release notes, please allow 30 minutes for the site to update.
Keeping the relnote-firefox flag as ? to keep it on the radar for inclusion in the final Fx144 release notes.

Comment 11

[Donal Meehan [:dmeehan]]

Added to the Fx144 release notes

Comment 12

[Sebastian Zartner [:sebo]]

The related browser compat data also needs to be updated. Therefore I've added the dev-doc-needed flag.

Sebastian

Comment 13

[Hamish Willee]

FF144 MDN work for this can be tracked in https://github.com/mdn/content/issues/41409. Very minor - compat data work had already been picked up and this had docs. Just and MDN release note and removal from experimental features page.