RESOLVED INVALID223632
CORS error on ResizeObserver loop 
https://bugs.webkit.org/show_bug.cgi?id=223632
Summary CORS error on ResizeObserver loop
vitekio
Reported 2021-03-23 03:49:21 PDT
Created attachment 424008 [details] CORS error on ResizeObserver loop 'ResizeObserver loop completed with undelivered notifications' error is causing the CORS error why? User sees only 'Script error. Error in cross-origin script..'. It looks like a default message when an error has no file, line, or column, which is usually the case for security reasons on CORS error. The 'ResizeObserver loop' error shouldn't cause an artificial CORS error.
Attachments
CORS error on ResizeObserver loop (134.73 KB, image/png)
2021-03-23 03:49 PDT, vitekio 		no flags
Details
View All Add attachment proposed patch, testcase, etc.
Alexey Proskuryakov
Comment 1 2021-03-23 15:54:00 PDT
The ResizeObserver error appears to be an uncaught exception, and some JavaScript code (possibly in window.onerror) reports it. There is no evidence of a browser engine bug here, this all looks normal. The link displayed by the handler (https://blog.sentry.io/2016/05/17/what-is-script-error) has some reasonable looking explanation too.
vitekio
Comment 2 2021-03-23 23:58:29 PDT
(In reply to Alexey Proskuryakov from comment #1) > The ResizeObserver error appears to be an uncaught exception, and some > JavaScript code (possibly in window.onerror) reports it. There is no > evidence of a browser engine bug here, this all looks normal. > > The link displayed by the handler > (https://blog.sentry.io/2016/05/17/what-is-script-error) has some reasonable > looking explanation too. Initially, the issue is, why does 'cross-origin' error occur on ResizeObserver loop?
Note You need to log in before you can comment on or make changes to this bug.