There was a problem saving your changes. Please try again later.
There was a problem saving your changes. Please try again later. When I try to save settings of my facebook app. I got the above error. It occurred when I try to save Secure Canvas URL field. And then I used port number of 443 with my url. For example if my Secure Canvas URL is https://dl.dropbox.com/u/38102629/index.html? I added port number and my canvas url is https://dl.dropbox.com :443 /u/38102629/index.html? And error went away.