大佬们，求帮助，可有偿，整不明白了

      代码：   <script type="text/javascript">             window.onload=function(){ let mchData ={action:'onIframeReady',displayStyle:'SHOW_CUSTOM_PAGE'} let postData = JSON. stringify(mchData) parent.postMessage(postData,'https://payapp.weixin.qq.com')             } function tiaozhuan(){ let mchData ={action:'jumpOut', jumpOutUrl:'https://www.qq.com'} let postData = JSON. stringify(mchData) parent.postMessage(postData,'https://payapp.weixin.qq.com') }         </script> weixinpayreturn.php:37 Failed to execute 'postMessage' on 'DOMWindow': The target origin provided ('https://payapp.weixin.qq.com') does not match the recipient window's origin ('https://www.baidu.com'). window.onload @ weixinpayreturn.php:37 load (async) (anonymous) @ weixinpayreturn.php:33 weixinpayreturn.php:45 Failed to execute 'postMessage' on 'DOMWindow': The target origin provided ('https://payapp.weixin.qq.com') does not match the recipient window's origin ('https://www.baidu.com'). js报错为什么，都是https啊