Summary: The error appears to be benign and not caused by any of our code.
Test Plan:
Reproducing was tricky.
On the Access Rules page, changing the browser's zoom level caused the error to surface. Weirdly enough, it only happened when connected to a larger, external monitor, and not on my laptop's internal monitor.
In any case, manual testing was done to confirm the error is no longer reported to the user after this change.
Reviewers: jarek
Reviewed By: jarek
Subscribers: jarek
Differential Revision: https://phab.getgrist.com/D4095
cb0ce9b20f