Hello OnlyOffice team,
I am currently using the OnlyOffice Document Server for Windows, which I installed using the exe on a Windows Server. For its client, I have utilized the Spring Boot sample project provided on this page: ONLYOFFICE Api Documentation - Example.
I have successfully configured both the Document Server and its client (Spring Boot project) on an HTTPS domain. However, I have encountered an issue where the Document Server is returning an HTTP URL for the frame instead of HTTPS. As a result, I am encountering the error mentioned in the image below.