JS errors · Visits with an error
JS errors: share of visits with at least one uncaught JavaScript error.
JS errors verdict
v1.2.2 vs v1.2.1 · / · mobileNowv1.2.1
Unchanged
Visits with an error didn’t change. A change only counts when it is at least 5% and at least 1.0 pts. Here that means 1.0 pts, so this one doesn’t.
less common−1.0 pts · too small to count · +1.0 ptsmore common
Now · v1.2.2
1.6%
v1.2.11.6%Change+0.0 pts
Visits measured
246
on mobile, enough for a verdict
v1.2.1 · mobile171 / 30
v1.2.2 · mobile246 / 30
v1.2.2 · desktop89 / 30
Moved in the same release
The rest of visitor experience. A place to look, not a cause.
Top JavaScript errors
Uncaught errors and unhandled promise rejections · Mobile
| Error | Visits | Times |
|---|---|---|
| Script error. | 2 · 0.3% | 2 |
| ResizeObserver loop completed with undelivered notifications. | 1 · 0.1% | 3 |
“New” means the previous release never reported it. Emails, IDs, tokens and query strings are stripped before anything is sent, up to 5 messages per visit. “Script error.” is a script from another domain that the browser won’t share details about.
JS errors across releases
Typical visit · each point is a deploy, ringed by its JS errors verdictImprovedRegressedUnchanged
JS errors by page
v1.2.2 vs v1.2.1 · mobile · pages need 30 visits on both sidesPageVisitsv1.2.1v1.2.2ChangeVerdict
2461.6%1.6%+0.0 ptsUnchanged
1761.7%1.7%+0.0 ptsUnchanged
2111.8%1.8%+0.0 ptsUnchanged
701.5%1.5%+0.0 ptsUnchanged