Upon attempting to access a frame from a separate origin, Chrome intervenes by blocking the action and generating an exception message:
"Uncaught SecurityError: Blocked a frame with origin 'provider domain' from accessing a frame with origin 'mydomain'. Protocols, domains, and ports must match".
This issue arose following a recent update in Google Chrome. Any advice on how to resolve this?
To enable direct Javascript calls between frames and/or windows, they must adhere to the principles of the same-origin policy. If your window and iframe have a common parent domain, you can adjust the document.domain to "domain lower") one or both so that communication is possible. Otherwise, consider utilizing the postMessage() API.
This urgent update addresses a critical security vulnerability. If an unauthorized individual gains access to a web server file (such as JavaScript), they could potentially manipulate all loaded pages to execute malicious scripts, such as capturing keystrokes or stealing SessionIDs and transmitting them to a remote server.
To mitigate this risk, modern browsers enforce the Same-origin policy
Your specific issue arises when your script attempts to retrieve data from a different domain (or subdomain) via an Ajax request. In order to resolve this issue (particularly if the content is hosted on your own site), you have several options:
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