POSTMESSAGE
Sends a message to current browser page.
Syntax
POSTMESSAGE(message)
message - the text message which should be sent to the browser page - Value type: text
Remark
The message is sent to the browser page after the current formula evaluation has been completed.
The parent page should have a windows.addEventListener function to receive this message (see example below).
Example
Add this script tag to your parent page to receive the message which has been sent by the POSTMESSAGE function:
Instead of the console.log function you could add any custom code to process message in the expected way.