How to use Auth0 Lock with .NET

Auth0LockUtilities.js

function signin(returnUrl?: string, targetId?: string, showChrome: boolean = true) {
    //RWM: We declare a new version every time because the old one gets disposed.
    var lock = new Auth0Lock(auth0ClientId, auth0Domain);
    lock.showSignin({
        callbackURL: window.location.origin + "/signin-auth0",
        authParams: {
            state: returnUrl !== "" ? "ru=" + returnUrl : null,
            scope: "openid profile"
        },
        container: targetId,
        popup: showChrome,
        connections: ["windowslive", "google-oauth2", "linkedin", "facebook", "aol", "yahoo", "amazon"],
        rememberLastLogin: true,
        sso: true
    });
}