There are quite a few SO questions (1, 2, 3, etc.) that go over the same problem I am having (fonts are not displaying on FireFox due to CORS issue). I have tried all of the proposed solutions in the above questions as well as various blog posts that come up when Googling the issue.
In my specific case I am using Cloudfront on Heroku but I am not using S3 (my assets are pulled to the CDN on first request). I am also using site-wide SSL (and I'm not sure if this is what is causing my issues as all the other examples seem to be for http:// sites). Currently I am trying to use the font_assets gem but when I curl one of my font files (or even a jpg file) I am getting a 301 Moved Permanently instead of a 200.
curl -i https://d2loy3ox2q4ikr.cloudfront.net/assets/fontawesome-webfont-9a3b8f90662fe9149f07a059f1a4c782.woff
HTTP/1.1 301 Moved Permanently
Content-Type: text/html
Transfer-Encoding: chunked
Connection: keep-alive
Date: Wed, 09 Apr 2014 12:27:33 GMT
Location: https://www.transdraft.com/assets/fontawesome-webfont-9a3b8f90662fe9149f07a059f1a4c782.woff
Status: 301 Moved Permanently
X-Cache: Miss from cloudfront
Via: 1.1 1316c66c042cd4b103a533bbf48877a5.cloudfront.net (CloudFront)
X-Amz-Cf-Id: NciaYbAYVS7OpY6ORzjeZMurd_cyBo-B1WfN1QZbSexbM2DoD0vWqg==
curl -i https://d2loy3ox2q4ikr.cloudfront.net/assets/transdraft-hp-2-0fa26dc608ff6a3ea83a093dce8e6338.jpg
HTTP/1.1 301 Moved Permanently
Content-Type: text/html
Transfer-Encoding: chunked
Connection: keep-alive
Date: Wed, 09 Apr 2014 12:28:47 GMT
Location: https://www.transdraft.com/assets/transdraft-hp-2-0fa26dc608ff6a3ea83a093dce8e6338.jpg
Status: 301 Moved Permanently
X-Cache: Miss from cloudfront
Via: 1.1 c8b893f88c46deef2c0f22aefa2d3ecc.cloudfront.net (CloudFront)
X-Amz-Cf-Id: 897u3X7te5f167cZlJiBME1UlBp5NYtGrKm18D4FWOHlTEFMITYTLw==
Any idea what I might be doing wrong?