Vue 跨域问题解决办法2020

<?php
（我一般放到入口文件里index.php）

//  设置请求头
setHeader();

function setHeader()
{
    // 公共响应头
    header('Content-Type: Application/json');

    // 如果需要跨域，写在这里
    header('Access-Control-Allow-Origin: *');
    header('Access-Control-Allow-Headers: Authorization, Content-Type, If-Match, If-Modified-Since, If-None-Match, If-Unmodified-Since, X-Requested-With');
    header('Access-Control-Allow-Methods: GET, POST, PATCH, PUT, DELETE');
}