I have a problem with setting up a qgis web client on remote server. I set it up on localhost and it runs smoothly, but when I done exactly the same on remote server it is just not working, even a default maps. Helloworld example is not showing up layers, and my project is working only when i exclude about 20 layers, and by the way all styles are crashed. I could not find an issue, and exacly the same projects and many more runs great on localhost.
It is link to remote server: 22.214.171.124/qgis-web-client/site/index.html
I noticed that on localhost server sends POST requests and on remote server it is always a GET request. I think that could be the issue, since request to display all layers in GET method would be too long. But i still couldn't figure out how to enforce POST method.
It is POST on remote server at the end, but it still doesn't work, here is link to the project with more layers: