# must be run without Rack::Lint since that clobbers to_path
use Rainbows::DevFdResponse
run(lambda { |env|
[ 200,
{
'Content-Length' => ::File.stat('random_blob').size.to_s,
'Content-Type' => 'application/octet-stream',
},
IO.popen('cat random_blob', 'rb') ]
})