malsup ajax form login

malsup ajax form login

I don't know what is the problem in my code

view:

<!-- Modal Login start -->
<div class="modal signUpContent fade" id="ModalLogin" tabindex="-1" role="dialog">
    <div class="modal-dialog ">
        <div class="modal-content">
            <div class="modal-header">
                <button type="button" class="close" data-dismiss="modal" aria-hidden="true"> &times; </button>
                <h3 class="modal-title-site text-center"> 會員登入</h3>
            </div>

            <div class="modal-body">
                <div class="control-group"><a class="fb_button btn  btn-block btn-lg " href="#">FACEBOOK 登入</a></div>
                <h5 style="padding:10px 0 10px 0;" class="text-center"> 或 </h5>

                <form class="form" id="login" method="post" action="{{ url('/login') }}" autocomplete="off">
                    <div id="validation-errors"></div>
                    <div id="success_message"></div>
                    <input type="hidden" name="_token" value="{!! csrf_token() !!}">
                    <div class="form-group">
                        <input type="email" class="form-control" name="email" placeholder="電子郵件" value="{{ old('email') }}">

                    </div>

                    <div class="form-group">
                            <input type="password" class="form-control" name="password" placeholder="密碼">
                    </div>

                    <div class="form-group">
                        <div class="checkbox">
                                <input type="checkbox" name="remember" checked> 記住我
                        </div>
                    </div>

                    <div>
                        <div>
                            <input name="submit" class="btn  btn-block btn-lg btn-primary" value="登入" type="submit">
                        </div>
                    </div>
                <!--userForm-->
                </form>

            </div>
            <div class="modal-footer">
                <p class="text-center"> <a class="btn btn-link" data-toggle="modal" data-dismiss="modal"
                                                            href="#ModalSignup"> 會員註冊 </a>
                    <a class="btn btn-link" href="{{ url('/password/reset') }}">忘記密碼?</a>  </p>
            </div>
        </div>
        <!-- /.modal-content -->

    </div>
    <!-- /.modal-dialog -->

</div>
<!-- /.Modal Login -->

@section('login-script')
    <script type="text/javascript">
        $(document).ready(function() {
            var options = {
                beforeSubmit:  showRequest,
                success:       showResponse,
                dataType: 'json',
                clearForm: true
            };
            $('#login').ajaxForm(options);

        });
        function showRequest(formData, jqForm, options) {
            $("#validation-errors").hide().empty();
            $("#success_message").hide().empty();
            return true;
        }
        function showResponse(response, statusText, xhr, $form)  {

            if(response.success == false)
            {
                var error = response.errors;
                $.each(error, function(index, value)
                {
                    if (value.length != 0)
                    {
                        $("#validation-errors").append('<p class="alert alert-danger"><strong>'+ value +'</strong></p>');
                    }
                });
                $("#validation-errors").show().delay(2000).fadeOut();
            } else {
                var success = response.message;

                $("#success_message").append('<p class="alert alert-success"><strong>'+ success +'</strong></p>');
                $("#success_message").show().delay(2000).fadeOut();
            }
        }
    </script>
@stop

route:

Route::post('login', 'Auth\AuthController@signIn');

AuthController:

<?php

namespace App\Http\Controllers\Auth;

use App\User;
use App\Role;
use Validator;
use Request;
use App\Http\Controllers\Controller;
use Illuminate\Foundation\Auth\ThrottlesLogins;
use Illuminate\Foundation\Auth\AuthenticatesAndRegistersUsers;



class AuthController extends Controller
{
    /*
    |--------------------------------------------------------------------------
    | Registration & Login Controller
    |--------------------------------------------------------------------------
    |
    | This controller handles the registration of new users, as well as the
    | authentication of existing users. By default, this controller uses
    | a simple trait to add these behaviors. Why don't you explore it?
    |
    */

    use AuthenticatesAndRegistersUsers, ThrottlesLogins;

    /**
     * Where to redirect users after login / registration.
     *
     * @var string
     */
    protected $redirectTo = '/';

    /**
     * Create a new authentication controller instance.
     *
     * @return void
     */
    public function __construct()
    {
        $this->middleware('guest', ['except' => 'logout']);
    }

    /**
     * Get a validator for an incoming registration request.
     *
     * @param  array  $data
     * @return \Illuminate\Contracts\Validation\Validator
     */
    protected function validator(array $data)
    {
        return Validator::make($data, [
            'email' => 'required|email|max:255|unique:users',
            'password' => 'required|confirmed|min:6',
        ]);
    }

    /**
     * Create a new user instance after a valid registration.
     *
     * @param  array  $data
     * @return User
     */
    protected function create(array $data)
    {
        $create = User::create([
            'email' => $data['email'],
            'password' => bcrypt($data['password']),
        ]);

        //when create a user, it will attach a member role
        $user = User::find($create->id);
        $role = Role::where('name', '=', 'member')->firstOrFail();
        $user->roles()->attach($role->id);

        return $create;
    }
    

    public function signIn(Request $request)
    {
        $this->validate($request, [
            $this->loginUsername() => 'required', 'password' => 'required',
        ]);

        // If the class is using the ThrottlesLogins trait, we can automatically throttle
        // the login attempts for this application. We'll key this by the username and
        // the IP address of the client making these requests into this application.
        $throttles = $this->isUsingThrottlesLoginsTrait();

        if ($throttles && $this->hasTooManyLoginAttempts($request)) {
            return $this->sendLockoutResponse($request);
        }

        $credentials = $this->getCredentials($request);

        if (Auth::guard($this->getGuard())->attempt($credentials, $request->has('remember'))) {
            return $this->handleUserWasAuthenticated($request, $throttles);
        }

        // If the login attempt was unsuccessful we will increment the number of attempts
        // to login and redirect the user back to the login form. Of course, when this
        // user surpasses their maximum number of attempts they will get locked out.
        if ($throttles) {
            $this->incrementLoginAttempts($request);
        }

        return $this->sendFailedLoginResponse($request);
    }


}

Request URL:http://localhost/login Request Method:POST Status Code:302 Found Remote Address:127.0.0.1:80