ERROR TRACKING · INTERACTIVE DEMO
From browser error to a fix.
Explore a sample checkout error. See how repeat events stay in one issue and how a resolved error reopens when it comes back.
DEMO · sample dataExample Shop · production · release 1.4.2
TypeError: Cannot read properties of undefined
A shopper clicked “Place order”, but the checkout could not read the cart total.
- Status
- open
- Occurrences
- 3
- Regressions
- 0
Where it happened
submitOrder src/checkout.ts:42:15
Uploaded source maps connect the production error to the original file and line.
Activity before the error
- Page opened · /cart
- Click · /cart
- Page opened · /checkout
- Click · /checkout
The collector records page URLs and click timestamps, without form values.
Issue activity
- New issue → simulated alert
Try resolving the issue, then simulate another error. This example stays in your browser: it does not create project data or send notifications.
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In your project, open Error tracking to connect your website and upload release source maps.