Do we let Nginx to handle response Transfer-Encoding?

Eric Wong normalperson at
Sun Dec 27 22:17:00 EST 2009

Iñaki Baz Castillo <ibc at> wrote:
> Hi, I've checked that in case my Rack application (under Unicorn) doesn't set 
> "Content-Lentgh" neither "Transfer-Encoding", then Nginx automatically adds 
> "Transfer-Encoding: chunked" to the response (and edits the body properly to 
> be in chunked format).
> However Unicorn is sending a response with body but without "Content-Lentgh" 
> or "Transfer-Encoding", so IMHO it's incorrect according to RFC 2616.
> So, should my Rack application handle this stuff? or is it better if I let 
> Nginx "fixing" it for me?

Just load the Rack::ContentLength middleware, if you're building a Rack
app from scratch.  Some frameworks already handle Content-Length for

Eric Wong

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