1. BroadcastChannel

    BroadcastChannel allows scripts from the same origin but other browsing contexts (windows, workers) to send each other messages.

  2. broadcastchannel api: `broadcastchannel()` constructor

  3. broadcastchannel api: close

  4. broadcastchannel api: `messageerror` event

  5. broadcastchannel api: `message` event

  6. broadcastchannel api: name

  7. broadcastchannel api: onmessage

  8. broadcastchannel api: onmessageerror

  9. broadcastchannel api: postmessage