Skip to content

Short-circuit detection when page is opened in background tab since web-vitals.js will not report LCP #1927

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
westonruter merged 1 commit into from
Mar 17, 2025
Merged

Short-circuit detection when page is opened in background tab since web-vitals.js will not report LCP #1927

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
5 changes: 5 additions & 0 deletions plugins/optimization-detective/detect.js
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -422,6 +422,11 @@ export default async function detect( {
return;
}

if ( document.visibilityState === 'hidden' && ! document.prerendering ) {
log( 'Page opened in background tab so URL Metric is not collected.' );
return;
}

// Abort if the current viewport is not among those which need URL Metrics.
const urlMetricGroupStatus = getGroupForViewportWidth(
win.innerWidth,
Expand Down
Loading