Return the response HTTP version to the user

[grosch]

async-http-client/Sources/AsyncHTTPClient/HTTPHandler.swift

Line 656 in e2636a4

var head = HTTPRequestHead(version: HTTPVersion(major: 1, minor: 1), method: request.method, uri: request.url.uri)

Why is this hardcoding 1.1? There are still severs that return 1.0, and when doing caching it's important to know whether it's a 1.0 or 1.1 type reply because that changes what you send back in to do validation.

[Lukasa]

Because we only emit HTTP/1.1 requests, regardless of what the server responds with.

[grosch]

So I'm probably looking in the wrong area then. I'm trying to find out what version the server responded with.

@tanner0101

[tanner0101]

The HTTP version struct is indeed not passed along in the response either: https://github.com/swift-server/async-http-client/blob/master/Sources/AsyncHTTPClient/HTTPHandler.swift#L343-L346

I assume this is because it wouldn't make sense for a server to respond with 1.0 when a 1.1 request was sent. But I don't have an RFC reference to back that claim up.

[Lukasa]

Servers are free to respond with a 1.0 response to a 1.1 request. This seems like something we should communicate back to the user.