diff --git a/sourcemapped-stacktrace.js b/sourcemapped-stacktrace.js
index 2612729..6d6a38f 100644
--- a/sourcemapped-stacktrace.js
+++ b/sourcemapped-stacktrace.js
@@ -103,7 +103,7 @@ function(source_map_consumer) {
   };
 
   var absUrlRegex = new RegExp('^(?:[a-z]+:)?//', 'i');
-
+  var absUrlWithoutDomainAndProtocol = new RegExp('^/');
   Fetcher.prototype.onScriptLoad = function(e, uri) {
     if (e.target.readyState !== 4) {
       return;
@@ -127,7 +127,7 @@ function(source_map_consumer) {
           this.mapForUri[uri] = atob(embeddedSourceMap[2]);
           this.done(this.mapForUri);
         } else {
-          if (!absUrlRegex.test(mapUri)) {
+          if (!absUrlRegex.test(mapUri) && !absUrlWithoutDomainAndProtocol.test(mapUri)) {
             // relative url; according to sourcemaps spec is 'source origin'
             var origin;
             var lastSlash = uri.lastIndexOf('/');