MessageChannel port.postMessage's data is null when calling postMessage with a transferable object?

Question

I\'m learning about MessageChannel and transferable objects.

I\'ve got an iframe which is cross-domain from my page. The documentation surrounding MessageChannel indicat

Answer 1

I've reduced your code sample and discovered that the ArrayBuffer is always lost when it is passed through a MessagePort of a MessageChannel.

Reported as issue 334408: ^{"ArrayBuffer is lost in MessageChannel during postMessage (receiver's event.data == null)"} https://code.google.com/p/chromium/issues/detail?id=334408