diff --git a/src/js/ripple/crypt.js b/src/js/ripple/crypt.js
index 0bdd6bbf..bd0ea75e 100644
--- a/src/js/ripple/crypt.js
+++ b/src/js/ripple/crypt.js
@@ -361,11 +361,19 @@ Crypt.getStringToSign = function(config, parsed, date, mechanism) {
   // Sort the properties of the JSON object into canonical form
   var canonicalData = JSON.stringify(copyObjectWithSortedKeys(config.data));
 
+  // We're using URL parsing using browser functionality. Unfortunately the
+  // parsing result slightly differs in IE - it is missing a leading slash.
+  // XXX Proper fix would be to use a pure JS URL parser.
+  var pathname = parsed.pathname;
+ 
+  // IE11 Workaround
+  if (pathname[0] !== '/') pathname = '/' + pathname;
+ 
   // Canonical request using Amazon's v4 signature format
   // See: http://docs.aws.amazon.com/general/latest/gr/sigv4-create-canonical-request.html
   var canonicalRequest = [
     config.method || 'GET',
-    parsed.pathname || '',
+    pathname || '',
     parsed.search || '',
     // XXX Headers signing not supported
     '',