Fix travis

Author: jimmywarting

FormData.js

@@ -388,7 +388,7 @@ if (typeof Blob === 'function' && (typeof FormData === 'undefined' || !FormData.
         init.body = init.body['_blob']()
       }
 
-      return _fetch.call(global, input, init)
+      return _fetch.call(this, input, init)
     }
   }
 
@@ -398,7 +398,7 @@ if (typeof Blob === 'function' && (typeof FormData === 'undefined' || !FormData.
       if (data instanceof FormDataPolyfill) {
         data = data['_asNative']()
       }
-      return _sendBeacon.call(global.navigator, url, data)
+      return _sendBeacon.call(this, url, data)
     }
   }
 

formdata.min.js

@@ -1,7 +1,7 @@
 module.exports = function (config) {
   config.set({
     frameworks: ['mocha', 'chai'],
-    files: ['test/*.js', 'formdata.js'],
+    files: ['test/*.js', 'formdata.min.js'],
     reporters: ['progress'],
     port: 9876, // karma web server port
     colors: true,

karma.conf.js

@@ -1,11 +1,11 @@
 {
   "name": "formdata-polyfill",
-  "version": "3.0.16",
+  "version": "3.0.17",
   "description": "HTML5 `FormData` polyfill for Browsers.",
   "main": "formdata.min.js",
   "scripts": {
     "build": "node build",
-    "prepare": "npm run test && npm run build",
+    "prepare": "npm run build && npm run test",
     "test": "standard ./FormData.js && karma start --single-run --browsers ChromeHeadless karma.conf.js"
   },
   "repository": {