Support origin lock in cross-origin renderer #1849
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This adds a URL parameter to the cross-origin renderer that makes it only accept messages from a given domain. This adds an extra layer of security to the cross-origin iframe and is backwards compatible in both directions.
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This adds a URL parameter to the cross-origin renderer that makes
it only accept messages from a given domain. This adds an extra
layer of security to the cross-origin iframe and is backwards
compatible in both directions.
See also matrix-org/usercontent#1