csrf_token提交时一直报错，查看源代码有隐藏的token值

源代码

<form method="post" action="/data">
        <input type="hidden" name="_token" value="XsRtQ4X8xMqlWRDpf1VgrStFTaxBAArdjfx0NyRd">
        <input type="text" name="name">
        <input type="submit" value="提交">
    </form>

错误提示

TokenMismatchException in VerifyCsrfToken.php line 67:
in VerifyCsrfToken.php line 67
at VerifyCsrfToken->handle(object(Request), object(Closure))
at call_user_func_array(array(object(VerifyCsrfToken), 'handle'), array(object(Request), object(Closure))) in Pipeline.php line 124
at Pipeline->Illuminate\Pipeline\{closure}(object(Request))
at call_user_func(object(Closure), object(Request)) in Pipeline.php line 32
at Pipeline->Illuminate\Routing\{closure}(object(Request)) in ShareErrorsFromSession.php line 49
at ShareErrorsFromSession->handle(object(Request), object(Closure))
at call_user_func_array(array(object(ShareErrorsFromSession), 'handle'), array(object(Request), object(Closure))) in Pipeline.php line 124
at Pipeline->Illuminate\Pipeline\{closure}(object(Request))
at call_user_func(object(Closure), object(Request)) in Pipeline.php line 32

路由代码

Route::group(['middleware'=>'web'], function (){
    Route::get('/form', function(){
        return view('form');
    });
    Route::post('/data', function (){
        return dd($_POST);
    });
});

前端代码

<div class="container">
    <form method="post" action="/data">
        { csrf_field() }
        <input type="text" name="name">
        <input type="submit" value="提交">
    </form>
</div>