has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resourc code example
Example 1: Angular Laravel has been blocked by CORS policy: Request header field x-requested-with is not allowed by Access-Control-Allow-Headers in preflight response.
namespace App\Http\Middleware;
use Closure;
class Cors
{
public function handle($request, Closure $next)
{
$response = $next($request);
$response->header('Access-Control-Allow-Methods', 'HEAD, GET, POST, PUT, DELETE');
$response->header('Access-Control-Allow-Headers', $request->header('Access-Control-Request-Headers'));
$response->header('Access-Control-Allow-Origin', '*');
return $response;
}
}
Example 2: ccess to XMLHttpRequest at 'http://127.0.0.1:5000/ has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
@app.route('your route', methods=['GET'])
def yourMethod(params):
response = flask.jsonify({'some': 'data'})
response.headers.add('Access-Control-Allow-Origin', '*')
return response