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HTTP2 with libcurl
Spec: http://tools.ietf.org/html/draft-ietf-httpbis-http2-06
Over an http:// URL
If CURLOPT_HTTP_VERSION is set to CURL_HTTP_VERSION_2, libcurl will include
an upgrade header in the initial request to the host to allow upgrading to
http2. Possibly introduce an option that will cause libcurl to fail if not
possible to upgrade. Possibly introduce an option that makes libcurl use
http2 at once over http://
Over an https:// URL
If CURLOPT_HTTP_VERSION is set to CURL_HTTP_VERSION_2, libcurl will use ALPN
(or NPN) to negotiate which protocol to continue with. Possibly introduce an
option that will cause libcurl to fail if not possible to use http2.
To consider:
- How to tell libcurl when using the multi interface that all or some of the
handles are allowed to re-use the same physical connection. Can we just
re-use existing pipelining logic?
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