Merge pull request #706 from Fefbug/master

use NetworkError code in aws-cognito-identity

packages/amazon-cognito-identity-js/src/Client.js

@@ -82,7 +82,7 @@ export default class Client {
         // otherwise check if error is Network error
         } else if (err instanceof Error && err.message === 'Network error') {
           error = {
-            code: err.name,
+            code: 'NetworkError',
             name: err.name,
             message: err.message,
           };