feat: Use parent origin instead of document.referrer #2760
Merged
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We sent message from iframe to origin infered document.referrer because document.referrer, when in an iframe, is set initially to the iframe URL. But if a redirection happens in the iframe (which happens during an oauth login) document.referrer is updated. So we sent message from iframe to the wrong origin.
Here we introduce a way to ask the parent window, if it exists, his origin. We just take the origin from the parent window answer metadata. We do not trust the parent window.
By doing this, bridge will be able to work even after a reload or a redirection inside the iframe.