Initial interceptor implementation.

karma.conf.js

@@ -16,20 +16,21 @@ module.exports = function(config) {
     // list of files / patterns to load in the browser
     files: [
       'dist/axios.js',
+      'node_modules/es6-promise/dist/promise-1.0.0.js',
       'test/specs/**/*.spec.js'
     ],
 
 
     // list of files to exclude
     exclude: [
-      
+
     ],
 
 
     // preprocess matching files before serving them to the browser
     // available preprocessors: https://npmjs.org/browse/keyword/karma-preprocessor
     preprocessors: {
-    
+
     },