Tiny cuid, not secure, fast, less than 170 bytes, uses a random session id instead of fingerprint.

tiny-cuid.js

let
  text,
  base36 = (number) => number.toString(36),
  randomStr = (length) => {
    for (
      text = "";
      text.length < length;
      text = base36(Math.random()).slice(2, length + 2)
    );
    return text
  },
  session = randomStr(4),
  count = 0,
  cuid = () =>
    "c" +
    base36(Date.now()) +
    ("000" + base36(count++)).slice(-4) +
    session +
    randomStr(8)

tiny-cuid.min.js

let t,b=(n)=>n.toString(36),r=(l)=>{for(t="";t.length<l;t=b(Math.random()).slice(2,l+2));return t},s=r(4),c=0,cuid=()=>"c"+b(Date.now())+("000"+b(c++)).slice(-4)+s+r(8)