brizeljohn's Wall
This error "Blocked a frame with origin from accessing a cross-origin frame " is not a bug. The same-origin policy is a security mechanism that ensures that window objects only have access to the informations they are authorized to get.
The window.postMessage() method provides a controlled mechanism to securely circumvent this Same-Origin Policy restriction. The window.postMessage() safely enables cross-origin communication between Window objects; e.g: between a page and an iframe embedded within it.
postMessage(message, targetOrigin)
postMessage(message, targetOrigin, [transfer])
targetOrigin - specifies what the origin of targetWindow must be for the event to be dispatched, either as the literal string "*" (indicating no preference) or as a URI.
http://net-informations.com/js/err/sop.htm
The window.postMessage() method provides a controlled mechanism to securely circumvent this Same-Origin Policy restriction. The window.postMessage() safely enables cross-origin communication between Window objects; e.g: between a page and an iframe embedded within it.
postMessage(message, targetOrigin)
postMessage(message, targetOrigin, [transfer])
targetOrigin - specifies what the origin of targetWindow must be for the event to be dispatched, either as the literal string "*" (indicating no preference) or as a URI.
http://net-informations.com/js/err/sop.htm
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brizeljohn
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January 10th, 2023