How to restore support for Nginx’s gzip_static in Rails 4.2
Nginx has the ability to serve static .gz files instead of compressing assets on the fly, which is great for performance. The Rails asset pipeline has supported this feature in the past, but unfortunately, this support is currently missing in Rails 4.2 and Sprockets 3. The Rails team is aware of the problem and has promised a fix, but in the meantime, here’s a workaround to restore this great feature.
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