Overcoming multi-factor authentication in user interface based automation script

A request is received from a browser (e.g., a tool that runs on top of or in a browser). The request is to authenticate via an authentication credential provided from a communication device that is external to a test communication device running the browser. The request is queued in a request queue. The authentication credential is received from an interceptor that intercepts the authentication credential in the external communication device. The authentication credential is sent to the browser, which in turn sends the authentication credential to the application under test. This completes the authentication process in the application under test. The request is then removed from the request queue. This allows for an automated multi-factor authentication process that can be used for testing the application under test.