description

# postMessage method

void postMessage(

1. dynamic message,
2. String targetOrigin, [
3. List<Object>? transfer

])
override

Sends a cross-origin message.

## Other resources

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

## Implementation

    void postMessage(
      /*any*/ message,
      String targetOrigin, [
      List<Object>? transfer,
    ]) {
      if (transfer != null) {
        var message_1 = convertDartToNative_SerializedScriptValue(message);
        _postMessage_1(message_1, targetOrigin, transfer);
        return;
      }
      var message_1 = convertDartToNative_SerializedScriptValue(message);
      _postMessage_2(message_1, targetOrigin);
      return;
    }