Protect IID

Excellent idea. To top off the UX on this extension, I'd suggest adding a "copied" response of some kind, followed by an automatic closing of the popup window.

Pe*****

Simple and does what is says. Howeve I would consider of having full range on alphabets on the generated string, this way: chars = '0123456789abcdefghijklmnopqrstuvwxyz' Array.from(window.crypto.getRandomValues(new Uint32Array(12))).map(x => chars[x % chars.length]).join('')