root_url can be localhost based

labs/meteor-client/app/start.sh

 #
 # the idea is that this way we prevent test runs (for whenever needed)
-JASMINE_SERVER_UNIT=0 JASMINE_SERVER_INTEGRATION=0 JASMINE_CLIENT_INTEGRATION=0 JASMINE_BROWSER=PhantomJS JASMINE_MIRROR_PORT=3000 ROOT_URL=http://192.168.0.119/html5client meteor
+JASMINE_SERVER_UNIT=0 JASMINE_SERVER_INTEGRATION=0 JASMINE_CLIENT_INTEGRATION=0 JASMINE_BROWSER=PhantomJS JASMINE_MIRROR_PORT=3000 ROOT_URL=http://127.0.0.1/html5client meteor
 # ROOT_URL_PATH_PREFIX=html5client meteor