1. @DomName('ServiceWorkerClient.postMessage')
  2. @DocsEditable()
  3. @Experimental()
void postMessage(
message,
[List<MessagePort> transfer]
)

Not documented.

Source

@DomName('ServiceWorkerClient.postMessage')
@DocsEditable()
@Experimental() // untriaged
void postMessage(/*SerializedScriptValue*/ message, [List<MessagePort> transfer]) => _blink.BlinkServiceWorkerClient.instance.postMessage_Callback_2_(unwrap_jso(this), message, transfer);