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authorDaniel Stenberg <daniel@haxx.se>2015-12-13 09:23:36 +0100
committerDaniel Stenberg <daniel@haxx.se>2015-12-13 09:24:51 +0100
commit4bcc532de5b639ace6f96f0a30524a08861843b1 (patch)
tree8d808958c1a58f54b1d29ca68dbe9baaef752d57 /docs/libcurl/opts
parent7f683b0ea87ed158eb4bd22cdd1f26eb901a97d0 (diff)
http: add libcurl option to allow HTTP/2 for HTTPS only
... and stick to 1.1 for HTTP. This is in line with what browsers do and should have very little risk.
Diffstat (limited to 'docs/libcurl/opts')
-rw-r--r--docs/libcurl/opts/CURLOPT_HTTP_VERSION.39
1 files changed, 8 insertions, 1 deletions
diff --git a/docs/libcurl/opts/CURLOPT_HTTP_VERSION.3 b/docs/libcurl/opts/CURLOPT_HTTP_VERSION.3
index aed7c0efe..262365e06 100644
--- a/docs/libcurl/opts/CURLOPT_HTTP_VERSION.3
+++ b/docs/libcurl/opts/CURLOPT_HTTP_VERSION.3
@@ -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