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Is it alright to respond with HTTP/1.0 to HTTP/1.1 request?
I am implementing HTTP communication through simple sockets and clients make requests with both HTTP/1.0 and HTTP/1.1 but protocol is independent of HTTP version so I want to always respond with HTTP/1.0 to all requests.
Does HTTP standard bear such communication?
Of course it’s alright. Otherwise, if you only supported HTTP/1.0, what could you do?
If HTTP 1.2 came out today, what do you think all existing HTTP 1.1 servers would send as replies to HTTP 1.2 queries? Of course, it’ll have to be HTTP 1.1 replies — that’s all they know how to do.
Just make sure you don’t follow HTTP 1.1 rules where they differ. For example, keep alives are not enabled by default. If a client sees an HTTP 1.0 reply, it will assume HTTP 1.0 semantics.