📊 Machine Learning
Q. Which API allows scripts in a document from one server to exchange messages with scripts?
  • (A) Cross-Document Messaging API
  • (B) Web application API
  • (C) Both Cross-Document Messaging API & Web application API
  • (D) None of the mentioned
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✅ Correct Answer: (A) Cross-Document Messaging API

Explanation: The Cross-Document Messaging API allows scripts in a document from one server to exchange messages with scripts in a document from another server. This works around the limitations of the same-origin policy in a secure way. Each message that is sent triggers a message event on the Window of the receiving document.

Explanation by: Mr. Dubey
The Cross-Document Messaging API allows scripts in a document from one server to exchange messages with scripts in a document from another server. This works around the limitations of the same-origin policy in a secure way. Each message that is sent triggers a message event on the Window of the receiving document.

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