I've tried to make the window.onerror handler work for cdn-loaded scripts like described here: https://code.google.com/p/chromium/issues/detail?id=159566 but we're still not getting any error messages and stacks.
The page in question is https://www.readyforzero.com/auth#login and we try to load two files: lib__V{hash}.js and auth__V{hash}.js from CDN, and make them report errors via window.onerror.
The script tags has the attribute crossdomain anonymous, and the CDN is instructed to send Access-Control-Allow-Origin: https://www.readyforzero.com (which is also verified).
However we don't see the stacks and error messages in the window.onerror handler
Two questions:
- We also load other scripts (typekit, GA), and they don't have ACAO header, could this cause problems?
- I see the the browser does not send origin headers for the lib and auth file, could this cause problems and how do i make the browser send origin headers?
See the headers here
