[solved] The nginx host cannot access another OnlyOffice host through HTTPS to open and edit documents

I used a port 443 proxy on a nginx host with SSL certificates deployed, and another host with only Onlyoffice installed, port 80, to successfully open the welcome page and create documents. However, the page did not respond when opening the documents.

The log file of OnlyOffice reported errors as shown in the following figure:

The problem has been solved. It’s because nginx was configured incorrectly

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@Ariven :wave:
Thank you for the update on resolving the issue!