php - When authorizing the WeChat web page to obtain the code, it occasionally fails to obtain it?

Question

I developed it using laravel,
Code to redirect to WeChat:

$redirect_url= 'xxx.com/xx/x';
return redirect()->intended($redirect_url);

But in the corresponding controller, sometimes there will be a problem of not getting the code. In most cases, it can be obtained. What is the situation? Is it a problem with WeChat itself?

Answer 1

Are the redirected hosts the same?

Answer 2

Now WeChat authorization must put a file on the server, have you put it?