CONSOLE MESSAGE: Cross-origin redirection to http://localhost:8080/security/resources/image-access-control.py?file=../../resources/square100.png&allow=true denied by Cross-Origin Resource Sharing policy: Origin http://127.0.0.1:8000 is not allowed by Access-Control-Allow-Origin. Status code: 302
Verify the error message in console in case of CORS failing checks.