infantServiceApi/app/system/middleware/AllowOriginMiddleware.php

<?php
// +----------------------------------------------------------------------
// | [ WE CAN DO IT MORE SIMPLE  ]
// +----------------------------------------------------------------------
// | Copyright (c) 2018-2020 rights reserved.
// +----------------------------------------------------------------------
// | 
// +----------------------------------------------------------------------
// | Date: 2020-08-30 14:59
// +----------------------------------------------------------------------
namespace app\system\middleware;



use app\Request;
use library\interfaces\MiddlewareInterface;
use \think\facade\Config;
use think\Response;

class AllowOriginMiddleware implements MiddlewareInterface {

    public function handle(Request $request, \Closure $next)
    {
        $origin = $request->header('origin');
        $header['Access-Control-Allow-Origin'] = '*';
        $header['Access-Control-Allow-Methods'] = 'POST,GET,JSON,OPTIONS,DELETE';
        $header['Access-Control-Allow-Headers'] = 'x-requested-with,content-type,SECRET-KEY,TOKEN,'. Config::get('cookie.promote_token_name','').','. Config::get('cookie.admin_token_name','').','. Config::get('cookie.system_token_name','');
        if ($request->method(true) == 'OPTIONS') {
            $response = Response::create('ok')->code(200)->header($header);
        } else {
            $response = $next($request)->header($header);
        }
        return $response;
    }

}