Hosting Fonts on Heroku with Cloudfront

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Brandon Hilkert

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Mar 7, 2014, 8:22:11 AM3/7/14
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I have a Rails 4 app that I'm hosting on Heroku. I'm using the passenger so all my assets are getting cache-control headers. However. I'm using Cloudfront as an asset CDN, so when fonts are downloaded from an external URL for Firefox, i get an error b/c there's not Access-Control-Allow-Origin headers. I added the following to my config/application.rb:

    config.action_dispatch.default_headers = {
      'X-Frame-Options' => '',
      'Access-Control-Allow-Origin' => '*',
      'Access-Control-Request-Method' => '*'
    }


However, b/c the assets are being served by the downloaded version of Nginx, those headers are integrated and the asset requests never make it to the Rails app.

Is there a way to configure headers for nginx in the Passenger gem?

Brandon Hilkert

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Mar 11, 2014, 3:38:10 PM3/11/14
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Any thoughts on this?

gagan...@desiringgod.org

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Mar 11, 2014, 4:09:06 PM3/11/14
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Brandon, 

I am facing the same problem. 

It seems though that there is no way to disable nginx from serving static assets. https://groups.google.com/forum/#!searchin/phusion-passenger/static$20files$20/phusion-passenger/C_niqzWeFHM/BMiOlzTNyeMJ

That's quite a bummer. 

Hongli Lai

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Mar 17, 2014, 12:25:37 PM3/17/14
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You can solve this by preventing Heroku from precompiling your
assets[1], and then serving assets from the Rails app[2]. This way
your assets will not be served through Nginx.

[1] Create a file public/assets/manifest.yml to prevent Heroku from
precompiling your assets. See
https://devcenter.heroku.com/articles/rails-asset-pipeline#compiling-assets-locally
[2] Enable config.serve_static_assets. See
https://devcenter.heroku.com/articles/rails-4-asset-pipeline#serve-assets
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Brandon Hilkert

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Mar 17, 2014, 12:29:08 PM3/17/14
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To me, hosting assets from Nginx was one of the benefits of using Passsenger on Heroku. If I wanted to serve assets from the application, I could just use unicorn (which is what I ended up doing).


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Hongli Lai

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Mar 17, 2014, 12:34:47 PM3/17/14
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In the near future, a method will be provided to customize the Nginx
config file directly in order to set headers for static assets. For
now, this is the way to go.
> https://groups.google.com/d/msgid/phusion-passenger/CAC%3DfdQhYYUjceRZTeJp6d6bQ5ou0HUbfkx%3DTLtydsNMyon-5ZA%40mail.gmail.com.

Brandon Hilkert

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Mar 17, 2014, 12:46:15 PM3/17/14
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Hongli Lai

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Mar 17, 2014, 1:04:34 PM3/17/14
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And done: https://github.com/phusion/passenger/commit/a23671b677ca340209328951edb607fe348f3b1c

This feature will be included in version 4.0.39.

Brandon Hilkert

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Mar 17, 2014, 1:08:49 PM3/17/14
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gagan...@desiringgod.org

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Mar 18, 2014, 12:01:16 PM3/18/14
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This is great! Thanks for your work Hongli Lai. 

Gagan 

Augustin Riedinger

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Mar 19, 2014, 1:22:44 PM3/19/14
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Thanks for these useful information Hongli Lai.
Is there a way we could test using the version 4.0.39 and have a config file example?

Chen Tom

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Sep 16, 2014, 8:47:23 PM9/16/14
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WOW this is great!! Thanks for your work!! AWESOME!!

Hongli Lai於 2014年3月18日星期二UTC+8上午1時04分34秒寫道:
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