Even if config.assets.digest = false is set Sprockets 3.0 keep adding .self. to all static files: application.css becomes applicatio
config.assets.digest = false
.self.
application.css
applicatio
In Sprockets 3, .self.css is added because you have the config.assets.debug = true config set (not the digest config, that's unrelated).
.self.css
config.assets.debug = true
If you add the following to your development.rb or production.rb file, it will work as you expect:
development.rb
production.rb
config.assets.debug = false