From d95b27915fa86e8d3f0ed21bce006b79d18d69c5 Mon Sep 17 00:00:00 2001
From: Raymond Hill <rhill@raymondhill.net>
Date: Sat, 18 Apr 2020 09:45:07 -0400
Subject: [PATCH] Bring fingerprint2.js scriptlet up to date

Related issue:
- https://github.com/uBlockOrigin/uAssets/pull/4961
---
 assets/resources/scriptlets.js | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/assets/resources/scriptlets.js b/assets/resources/scriptlets.js
index babdd1230..29973d8e8 100644
--- a/assets/resources/scriptlets.js
+++ b/assets/resources/scriptlets.js
@@ -1156,11 +1156,17 @@
 // https://github.com/uBlockOrigin/uAssets/issues/2912
 /// fingerprint2.js
 (function() {
-    let fp2 = function(){};
+    let browserId = '';
+    for ( let i = 0; i < 8; i++ ) {
+        browserId += (Math.random() * 0x10000 + 0x1000 | 0).toString(16).slice(-4);
+    }
+    const fp2 = function(){};
+    fp2.get = function(opts, cb) {
+        if ( !cb  ) { cb = opts; }
+        setTimeout(( ) => { cb(browserId, []); }, 1);
+    };
     fp2.prototype = {
-        get: function(cb) {
-            setTimeout(function() { cb('', []); }, 1);
-        }
+        get: fp2.get
     };
     window.Fingerprint2 = fp2;
 })();