fix(e2e:prod): turn off lusca if using saucelabs

Author: Awk34

Diff for: templates/app/server/config/express.js

@@ -56,7 +56,7 @@ export default function(app) {
    * Lusca - express server security
    * https://github.com/krakenjs/lusca
    */
-  if ('test' !== env) {
+  if (env !== 'test' && !process.env.SAUCE_USERNAME) {
     app.use(lusca({
       csrf: {
         angular: true