Asp.net web api ASP.NET web API标识外部登录重定向

我使用ASP.NETWebAPI身份登录Facebook，我有angularjs应用程序

当我打电话时

MainURL + 'api/Account/ExternalLogins?returnUrl=%2F&generateState=true'

我不想返回web API页面，而是希望Facebook将我重定向回我的angularJS应用程序，所以我这样做了：

 [AllowAnonymous]
    [Route("ExternalLogins")]
    public IEnumerable<ExternalLoginViewModel> GetExternalLogins(string returnUrl, bool generateState = false)
    {
        IEnumerable<AuthenticationDescription> descriptions = Authentication.GetExternalAuthenticationTypes();
        List<ExternalLoginViewModel> logins = new List<ExternalLoginViewModel>();

        string state;

        if (generateState)
        {
            const int strengthInBits = 256;
            state = RandomOAuthStateGenerator.Generate(strengthInBits);
        }
        else
        {
            state = null;
        }

        foreach (AuthenticationDescription description in descriptions)
        {
            ExternalLoginViewModel login = new ExternalLoginViewModel
            {
                Name = description.Caption,
                Url = Url.Route("ExternalLogin", new
                {
                    provider = description.AuthenticationType,
                    response_type = "token",
                    client_id = Startup.PublicClientId,
                    redirect_uri = new Uri("http://localhost:6263/com.html").AbsoluteUri,
                   // redirect_uri = new Uri(Request.RequestUri, returnUrl).AbsoluteUri,
                    state = state
                }),
                State = state
            };
            logins.Add(login);
        }

        return logins;
    }

---

我肯定这已经晚了。看看你的url，它有一个双斜杠（//）

我确信这已经晚了。看看你的url，它有一个双斜杠（//）

/api/Account/ExternalLogin?provider=Facebook&response_type=token&client_id=self&redirect_uri=localhost%3A6263%2Fcom.html&state=j0y0wF0yhvA_tzqbJo0GijCecqfbNWT0vLQiXxcHDqM1