void postMessage(
message,
String targetOrigin,
[List messagePorts]
)

Sends a cross-origin message.

Other resources

Source

/**
 * Sends a cross-origin message.
 *
 * ## Other resources
 *
 * * [window.postMessage]
 * (https://developer.mozilla.org/en-US/docs/Web/API/Window.postMessage) from
 * MDN.
 * * [Cross-document messaging]
 * (http://www.whatwg.org/specs/web-apps/current-work/multipage/web-messaging.html)
 * from WHATWG.
 */
void postMessage(var message, String targetOrigin, [List messagePorts]);