Send text to WhatsApp open on PC browser

Question

I'm using some JavaScript code to enable PC users to send texts to WhatsApp friends:

window.open("https://wa.me/?text=" encodeURIComponent("Hello, world!"));

However, it does work even if a WhatsApp tab is already open - it opens a new tab (forcing the user to reconnect to WhatsApp on a new tab).

Is there an option to use an already open WhatsApp tab (if available)?

Answer 1

Not possible unless you are building a Chrome extension. You may want to checkRetrieve which tabs are open in Chrome?