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Task: Fix Cross-Origin Iframe Communication Using postMessage

Task: Fix Cross-Origin Iframe Communication Using postMessage: a task in Terminal-Lego-15k (Harbor dataset). A web application attempts to communicate between a parent page and an iframe loaded from a different origin. The current implementation tries to directly access the iframe's DOM, which…

The task

A web application attempts to communicate between a parent page and an iframe loaded from a different origin. The current implementation tries to directly access the iframe's DOM, which causes a `SecurityError` due to the browser's Same-Origin Policy:

Part of PrimeIntellect/Terminal-Lego-15k.