@julian I've solved the problem. Thank you very much!

@julian Now through the domain name access is not wrong, but through the IP access will appear before the error, how should this deal with?

@yariplus I've changed what you're saying, but there are a lot of socket.io errors found in the console.

@jenkler My problem hasn't been solved yet.

@julian This config.url is not in the config.json? In addition, I checked the site with the console of the Chrome browser and found a lot of socket.io errors (403 errors)
In addition, how to configure socket.io in the config.json file?

@jenkler It looks like socket.io was wrong

@jenkler My website can be accessed through IP, there will not be the error as above, access to the domain name will be wrong.

Use the domain name to access the web site and report the following error, instead of using nginx as the reverse proxy.
Who can help?

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