Canvas Fingerprint

About

• How Does It Work (browserleaks.com)
• github.com/Valve/fingerprintJS
• cseweb.ucsd.edu/~hovav/dist/canvas.pdf

Demo

/fingerprint

Usage

see `/assets/init.js`

    var canvas = getCanvasFpCustom();
    hash = canvas.hash;
    img_src = canvas.data

Piwik usage

   _paq.push(["setDomains", ["*.synapse-studio.ru"]]);
+  _paq.push(['setUserId', getCanvasFpCustom().hash]);
   _paq.push(['trackPageView']);