角度2加载预飞响应失败无效(重定向)[重复]

我将angular 2与laravel php框架一起用于我的api。我的Angular 2项目正在运行 http://localhost:4200/ 当我的laravel php框架运行在 http://localhost:80/laravel/public

当我在Angular2项目中运行这个时:

getAllProfessionals():Observable<any> {
        return this.http.get(globals.baseUrl+'/professionals/', {headers:this.utilService.getHeadersJson()}).map(this.utilService.map);
    }

我的浏览器中出现此错误:

加载失败 http://localhost/laravel/public/api/v1/professionals/ 以下内容: 飞行前的响应无效(重定向)

globals.baseurl是 http://localhost/laravel/public/api/v1/

这是this.utilservice的电话

getHeadersJson() {
        let headers = new Headers();
        headers.append('Accept', 'application/json');
        headers.append('Content-Type', 'application/json');
        headers.append('Authorization',  'Bearer ' + localStorage.getItem('token'));
        return headers;
    }   

    map(response: Response): any {
        return response.json();
    }

我在这里做错什么了?我的api调用有问题吗?

当我这样做时,接到电话:

getCountrys(filter):Observable<any> {
            return this.http.get(globals.baseUrl+'/country/' + filter, {headers:this.utilService.getHeadersJson()}).map(this.utilService.map);
        }

让国家运转起来!

当我转到URL时: http://localhost/laravel/public/api/v1/professionals/

这就是回报:

请帮忙!

以下是位于“我的路由”文件夹中的laravel api.php文件中的路由:

Route::middleware('auth:api')->get('/user', function (Request $request) {
    return $request->user();
});

Route::group([ 'prefix' => 'v1'], function () {

    Route::resource('register', 'v1\RegisterController');
    Route::resource('paintype', 'v1\PainTypeController');
    Route::resource('painlevel', 'v1\PainLevelController');
    Route::resource('painkiller', 'v1\PainKillersController');
    Route::resource('profession', 'v1\ProfessionsController');
    Route::resource('qualification', 'v1\QualificationsController');
    Route::resource('specialities', 'v1\SpecialitiesController');
    Route::resource('problems', 'v1\ProblemsController');
    Route::resource('user', 'v1\UserController');
    Route::post('login', 'v1\AuthController@login');
    Route::post('professionals', 'v1\ProfessionalsController@store');
    Route::post('patients', 'v1\PatientsController@store');
    Route::get('country/{text}', 'v1\LocationController@getCountries');
    Route::get('region/{id}', 'v1\LocationController@getRegions');
    Route::get('city/{id}', 'v1\LocationController@getCities');
    Route::get('reviews/{username}', 'v1\ReviewController@show');

    Route::group(['middleware' => ['before' => 'jwt.auth']], function () {
        Route::resource('post-job', 'v1\PostJobController');
        Route::post('reviews', 'v1\ReviewController@store');
        Route::get('profile', 'v1\AuthController@profile');
        Route::get('jobs/listjob', 'v1\PostJobController@getMyJobs');
    });

});