Fixing: stacktracejs#35

Author: singhvi

stacktrace-gps.js

@@ -283,15 +283,15 @@
                         sourceMappingURL = base + sourceMappingURL;
                     }
 
-                    this._get(sourceMappingURL).then(function(sourceMap) {
+                    return this._get(sourceMappingURL).then(function(sourceMap) {
                         if (typeof sourceMap === 'string') {
                             sourceMap = _parseJson(sourceMap.replace(/^\)\]\}'/, ''));
                         }
                         if (typeof sourceMap.sourceRoot === 'undefined') {
                             sourceMap.sourceRoot = base;
                         }
 
-                        _extractLocationInfoFromSourceMap(stackframe, sourceMap, sourceCache)
+                        return _extractLocationInfoFromSourceMap(stackframe, sourceMap, sourceCache)
                             .then(resolve)['catch'](function() {
                             resolve(stackframe);
                         });