With ruby 1.8.x, ruby 1.9.x, and jruby I'm seeing the same test failure:
Bacon::Error: #<StringIO:0x7fa274f3ddb0>.closed?() failed
./test/spec_response.rb:268: Rack::Response - calls close on #body when 204, 205, or 304
Apologies, this was erroneous, the test was backported, but not the implementation that caused the failure. Thanks f7b7e1f
Confirmed fixed with 1.3.9. Thanks!
Remove error test, implementation not backported
* Closes #493