From ffe1b8e1499884a9d0dbb9b4ca0d108d00b8e28d Mon Sep 17 00:00:00 2001
From: Matias Alejo Garcia <ematiu@gmail.com>
Date: Tue, 30 Dec 2014 09:41:52 -0300
Subject: [PATCH] fix log.debug in IE

---
 js/util/log.js | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/js/util/log.js b/js/util/log.js
index 31a5a3ba5..0530e3130 100644
--- a/js/util/log.js
+++ b/js/util/log.js
@@ -49,7 +49,14 @@ _.each(levels, function(level, levelName) {
       if (Error.stackTraceLimit && this.level == 'debug') {
         var old = Error.stackTraceLimit;
         Error.stackTraceLimit = 2
-        var stack = new Error().stack;
+        var stack;
+
+        // this hack is to be compatible with IE11
+        try {
+          anerror();
+        } catch (e) {
+          stack = e.stack;
+        }
         var lines = stack.split('\n');
         var caller = lines[2];
         caller = ':' + caller.substr(6);