Correct syntax of a HTTP 100 Continue response

Posted by PartlyCloudy on Stack Overflow See other posts from Stack Overflow or by PartlyCloudy
Published on 2010-05-08T19:13:13Z Indexed on 2010/05/08 19:18 UTC
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http

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rfc2616

For me, one of the weakest points of the HTTP 1.1 RFC and the various implementations around is how to deal with 100 Continue headers.

I searched on the web for a while and had a look at different implementations. However, there is one thing I'm not sure of. what is the correct syntax of a 100 Continue message? Several sources claim, that this must be a single response line without any further header lines. However, I can't find that in the RFC 2616 reflected. So what is right?

HTTP/1.1 100 Continue

or

HTTP/1.1 100 Continue
[Additional Headers…]

?

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