I have managed to deploy my Rails 4 app to Heroku. All assets are served from a Cloudfront instance. This part works perfectly.
The only issue I'm experiencing, is the fact that my foundation icons are not being served. This is as a result of a CORS issue as seen here and here. I have read that AWS have implemented a solution for the CORS issue quite recently and that this shouldn't be a problem anymore, but I can't seem to fix/understand my issue.
I have tried the solutions above. I have also tried to make use of the "font_assets gem", as seen in another post, but I'm still presented with the following error:
".../assets/foundation-icons-8c44c3feedae5331a281278ea3ba91d2255928a2f3010d316d6fbb9052e0c2ec.woff. (Reason: CORS header 'Access-Control-Allow-Origin' missing)."