WhatsApp Web doesn't generate a QR code when opened on Android phone's browsers.
I have already changed my settings to the desktop view, but still, the QR code is not generated.
How to show WhatsApp Web's QR code on Android phone's browsers?
If in settings you clear ALL data of the Chrome app and restart Chrome, it works once. Obviously a cookie problem. Solution is to close all tabs, open a new incognito tab, check the Desktop site version from the menu, if not checked, open web.whatsapp.com et voila: the qr code. Important is to open a NEW tab, when you exit from incognito Chrome deletes all cookies of it!