后端已经设置了跨域,前端依旧报跨域错误

Question

项目中后端laravel已经设置了跨域:

$response->header('Access-Control-Allow-Origin', "*");
$response->header('Access-Control-Allow-Headers', 'Origin, Content-Type, Cookie, X-CSRF-TOKEN, Accept, Authorization, X-XSRF-TOKEN');
$response->header('Access-Control-Expose-Headers', 'Authorization, authenticated');
$response->header('Access-Control-Allow-Methods', 'GET, POST, PATCH, PUT, OPTIONS');

前端依旧报跨域错误:

求解~~

Answer 1

你要在浏览器开发者面板查看具体请求的响应体是否有带上Access-Control-Allow-Origin请求字段，来确定后端配置是否生效。