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http: add libcurl option to allow HTTP/2 for HTTPS only

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... and stick to 1.1 for HTTP. This is in line with what browsers do and
should have very little risk.
This commit is contained in:
Daniel Stenberg
2015-12-13 09:23:36 +01:00
parent 7f683b0ea8
commit 4bcc532de5
10 changed files with 34 additions and 23 deletions
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9
docs/libcurl/opts/CURLOPT_HTTP_VERSION.3
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@@ -45,8 +45,15 @@ Enforce HTTP 1.0 requests.
.IP CURL_HTTP_VERSION_1_1
Enforce HTTP 1.1 requests.
.IP CURL_HTTP_VERSION_2_0
Attempt HTTP 2 requests. libcurl will fall back to HTTP 1.x if HTTP 2 can't be
Attempt HTTP 2 requests. libcurl will fall back to HTTP 1.1 if HTTP 2 can't be
negotiated with the server. (Added in 7.33.0)
The alias \fICURL_HTTP_VERSION_2\fI was added in 7.43.0 to better reflect the
actual protocol name.
.IP CURL_HTTP_VERSION_2TLS
Attempt HTTP 2 over TLS (HTTPS) only. libcurl will fall back to HTTP 1.1 if
HTTP 2 can't be negotiated with the HTTPS server. For clear text HTTP servers,
libcurl will use 1.1. (Added in 7.47.0)
.SH DEFAULT
CURL_HTTP_VERSION_NONE
.SH PROTOCOLS

1
docs/libcurl/symbols-in-versions
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@@ -692,6 +692,7 @@ CURL_HTTP_VERSION_1_0 7.9.1
CURL_HTTP_VERSION_1_1 7.9.1
CURL_HTTP_VERSION_2 7.43.0
CURL_HTTP_VERSION_2_0 7.33.0
CURL_HTTP_VERSION_2TLS 7.47.0
CURL_HTTP_VERSION_NONE 7.9.1
CURL_IPRESOLVE_V4 7.10.8
CURL_IPRESOLVE_V6 7.10.8