> like how copying and pasting any multiline document into your browser's URL bar will almost certainly format it into a sane single-line format.
Didn't know that. I learned the other day that one can paste a password into the URL bar and drag it to a password field on the website that's annoyingly blocking paste (on Firefox at least). Probably a bad idea for security reasons (telemetry?). Just found it surprising. Also noticed many crappy sites that block paste will forget to block Ctrl + insert or Ctrl + Shift + v. I usually don't have this problem because the plugin of my password manager usually works..