Shopify/dashing — pull request #86 by byroot (2013-03-26 17:48:35+00:00)
Title: Send an X-Accel-Redirect in /events to disable nginx buffering

Without that widgets take a lot of time to load if you're deployed behind nginx.

See: http://wiki.nginx.org/X-accel#X-Accel-Buffering

Maybe it can be pushed in Sinatra itself inside the stream method.