From ddacd57cc8bf906379cadf9129fbf6e25699f058 Mon Sep 17 00:00:00 2001
From: kangax <kangax@gmail.com>
Date: Mon, 14 Jan 2013 12:08:39 +0100
Subject: [PATCH] Avoid expensive regex when modifying data url string

---
 src/image.class.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/image.class.js b/src/image.class.js
index a2dc9e35..092a1c0f 100644
--- a/src/image.class.js
+++ b/src/image.class.js
@@ -213,7 +213,8 @@
       replacement.height = imgEl.height;
 
       if (isLikelyNode) {
-        var base64str = canvasEl.toDataURL('image/png').replace(/data:image\/png;base64,/, '');
+        // cut off data:image/png;base64, part in the beginning
+        var base64str = canvasEl.toDataURL('image/png').substring(22);
         replacement.src = new Buffer(base64str, 'base64');
         _this._element = replacement;