alt Hacker NewsThe QR code/URL would be generated/requested by the javascript running on the website you're viewing, which knows what's in your address bar.
The QR code/URL would be generated/requested by the javascript running on the website you're viewing, which knows what's in your address bar.
It would be generated by some other website like Amazon. Because I own, say, Meta, I copy these Amazon-generated codes over to Meta, make people scan them on their phones to sign into Meta and then pass the solution back to Amazon so my bots can sign into Amazon.