emberjs/ember.js — pull request #3183 by rjackson (2013-08-24 18:43:35+00:00)
Title: Update ember-dev to disable automatic asset compression.

See details here: https://github.com/emberjs/ember-dev/pull/28.

tldr: We are serving compressed files to all clients whether they request (or support) compression or not. This is certainly not RFC compliant, and I don't see a way to make S3 take care of this automatically for us.