I'm trying to use a domain name I have on Namecheap with Heroku. Heroku's documentation advised a CNAME Alias. In the past, I've gotten other domains on the same service (Namecheap) to work with Heroku, but I can't get this domain to work. I followed Heroku's instructions and imitated the way the other domains are set up.
Using Namecheap's web tool, I changed "All Host Records". In that section, I have:
@ http://www.example.com URL Redirect www example.herokuapp.com CNAME (Alias)
set up at the top of the page. In Heroku's app settings, I can see that www.example.com is a domain of example.herokuapp.com, which I configured with the command line. When I go to www.example.com, however, I get
The server at page "www.www.example.com/?from=@" is not responding".
Any ideas how to fix it? I already tried manually changing the DNS to Google's servers, as well as using just about every variation of my domain. The additional www and /?from=@ seems to be a clue, but I'm not sure what's causing it.
To be clear, my objective is running my Heroku app through www.example.com