🚨 Error: Cannot read property 'toString' of undefined

ampproject / error-reporting

Contains production error tracking issues.

Apache License 2.0

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Open ampprojectbot opened 3 years ago

ampprojectbot commented 3 years ago

Error report: link First seen: May 9, 2018 Frequency: ~ 351/day

Error: Cannot read property 'toString' of undefined
    at toString (src/polyfills/custom-elements.js:99:30)

@jridgewell modified src/polyfills/custom-elements.js:90-102 in #17205 (Aug 3, 2018)

Seen in:

/cc @ampproject/release-on-duty

rcebulko commented 3 years ago

@calebcordry This seems to be occurring mostly in ExpA; could this be related to that experiment or the recent PR that was cherry-picked?