But did you set the game type to HTML first?
I doubt it has been done in the original release, since there was no web option
I have a couple of questions then:
1 - Can i change the game type to HTML in the already existent page?
2 - If i can do it, what will happen to all the current contents inside the page? They stay as before or they get messed up or something?
Ok, so that was the problem indeed: the web version has been uploaded and can be activated... even if at the moment there are several bug to fix: seems that just making a WebGL build is not enough to make work a generic build of Unity.
Seems that in particular it's problematic to handle the saving system which doesn't look at the original path anymore, btw it's a JSON the save files. For the moment i'll remove the web version and try to fix it testing on Unity