dart:html

postMessage method

void postMessage(

1. dynamic message,
2. String targetOrigin,
3. [List<MessagePort>? messagePorts]

)

Sends a cross-origin message.

Other resources

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

Implementation

void postMessage(var message, String targetOrigin,
    [List<MessagePort>? messagePorts]);