FB Canvas URL link from DropBox

Hi I would like to know how can i link my game uploaded on DropBox to Facebook Applications URL has to be finished with: / so I can't link .html file, if i link .html/ I get error on loading.

or where else should i upload my game? I have same problem with 000webhost.

is there any way to automatically load html file from directory?

as you can see i'm using this free servers, so i don't think i can contac administration for help.

You need to upload.unity3d file to facebook canvas url. i am also running one of my in dropbox with facebook.
https://apps.facebook.com/icecreammania/

I am not sure how it works on DropBox & Co. but you could try to rename the html file to "index.html" and set your link to the directory only.