gistfile1.txt

  script(src="https://cdn.firebase.com/libs/firebaseui/2.4.1/firebaseui.js")
  link(href='https://cdn.firebase.com/libs/firebaseui/2.4.1/firebaseui.css', rel='stylesheet')
  script.
    // FirebaseUI config.
    var uiConfig = {
        signInSuccessUrl: '/login',
        signInOptions: [
            // Leave the lines as is for the providers you want to offer your users.
            //firebase.auth.GoogleAuthProvider.PROVIDER_ID,
            firebase.auth.FacebookAuthProvider.PROVIDER_ID,
           // firebase.auth.TwitterAuthProvider.PROVIDER_ID,
            //firebase.auth.GithubAuthProvider.PROVIDER_ID,
            firebase.auth.EmailAuthProvider.PROVIDER_ID,
            //firebase.auth.PhoneAuthProvider.PROVIDER_ID
        ],
        // Terms of service url.
        tosUrl: '<your-tos-url>'
    };

    // Initialize the FirebaseUI Widget using Firebase.
    var ui = new firebaseui.auth.AuthUI(firebase.auth());
    // The start method will wait until the DOM is loaded.
    ui.start('#firebaseui-auth-container', uiConfig);