We have a website (.Net / jquery / Bootstrap 4), using Rollbar to log Javascript errors. Rollbar is logging an intermittent Javascript error with the message "Not a Product." For the trace, it only includes:
File "(unknown)" line (unknown) col 0 in [anonymous]
The error only occurs on Chrome 60, 61, and 62 on Windows and Mac. Our client information and telemetry do not expose any browser extensions that could be responsible, but I don't know how to rule that out. Is there some way to troubleshoot this, or do we have to assume it's a Chrome extension unless it occurs on other clients?