mime_type.rb Ruby on Rails 5.1.2 mime_type.rb actionpack/lib/action_dispatch/http/mime_type.rb on GitHub Last modified: 2017-07-12 08:38:52 -0700 Required Files singleton active_support/core_ext/string/starts_ends_with action_dispatch/http/mime_types Namespace MODULE Mime CLASS Mime::AllType CLASS Mime::Mimes CLASS Mime::NullType CLASS Mime::Type