Parameters for window.broadcast. Send a message to every window except the caller, delivered as window:message with { sourceWindowId, message }.
window.broadcast
window:message
{ sourceWindowId, message }
The message, delivered as message of the event. Passing null is treated as omitted.
message
null
Parameters for
window.broadcast. Send a message to every window except the caller, delivered aswindow:messagewith{ sourceWindowId, message }.