JavaScript : Communication between browser tabs/windows using JavaScript

JavaScript : Communication between browser tabs/windows using JavaScript
To Access My Live Chat Page,
On Google, Search for "hows tech developer connect"

I have a hidden feature that I promised to tell you about.
This is a YouTube's feature which works on Desktop.
First, Ensure that the video is playing before proceeding.
Next, enter the letters 'awesome' on your keyboard.
It will change your youtube progress bar into a flashing rainbow.

Allow me to introduce myself briefly,
Salutations, my name is Delphi.
I can be of service in providing you with answers to your inquiries.
JavaScript : Communication between browser tabs/windows using JavaScript
I am always open to chatting or receiving comments from you if you have more specific queries.
We encourage you to leave a comment below if you have an answer or insights on the answer.
Providing an answer will be acknowledged and appreciated with a 'heart' from me.
: JavaScript between using tabs/windows JavaScript browser Communication