1. @DomName('Window.postMessage')
  2. @DocsEditable()
void postMessage(
message,
String targetOrigin,
[List<MessagePort> transfer]
)

Sends a cross-origin message.

Other resources

window.postMessage from MDN. Cross-document messaging from WHATWG.

Source

@DomName('Window.postMessage')
@DocsEditable()
void postMessage(/*SerializedScriptValue*/ message, String targetOrigin, [List<MessagePort> transfer]) => _blink.BlinkWindow.instance.postMessage_Callback_3_(unwrap_jso(this), message, targetOrigin, transfer);