Interaction to Next Paint Changes in Chrome 111

Bug fix: Event Timing API no longer reports very long durations when interaction leads to "open in new tab"

This bug fix causes the Event Timing API to ignore the presentation time if the page visibility changed. Before the bug fix, if the interaction caused the page to be hidden, the duration in Event Timing would report the time the page became visible again. This is technically the "next paint", but since it involves waiting for the user to switch back to the page, it's not representative of performance, so it is now ignored.

This bug affected the Event Timing API only. The correct data has always been reported to the Chrome User Experience report. So this is an issue developers may see in real user monitoring analytics.

Source code

When were users affected?

Chrome 111 was released the week of March 7, 2023.