Should I be concerned by “SecurityError: Permission denied to access property on cross-origin object” logs
Following errors were logged on my website, should I be concerned or can I just ignore them?
SecurityError: Permission denied to access property "dispatchEvent" on cross-origin object - url: moz-extension://f985b107-bcb9-45d4-95c4-b1bb39443725/js/inject.js - line: 65 - column: 0 - error: SecurityError: Permission denied to access property "dispatchEvent" on cross-origin object (browser: Firefox 55)
Thanks!
You should not be concerned, you can ignore them.
It comes from extension of a firefox browser: url: moz-extension://f985b107-bcb9-45d4-95c4-b1bb39443725/js/inject.js
who’s trying to attach event but CrossOrigin query is not allowed.
Good documentation explaining CORS (Cross Origin Resource Sharing) : https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS
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