Re: [w3c/FileAPI] "Null"ing out the Origin of a BLOB (#74)

> It could then for instance load an iframe or instantiate a plugin from the blob's content; this would give the attacker script execution in the blob's (and hence its creating app's) origin.

How? Would the blob iframe and its parent not be cross-origin? Or you assume the blob iframe has unsafe postMessage() usage or some such?

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Received on Wednesday, 28 June 2017 22:54:32 UTC