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Diffstat (limited to 'docs/manual/mod/mod_http2.xml')
| -rw-r--r-- | docs/manual/mod/mod_http2.xml | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/docs/manual/mod/mod_http2.xml b/docs/manual/mod/mod_http2.xml index 68cc0908d4..926bb1ca5f 100644 --- a/docs/manual/mod/mod_http2.xml +++ b/docs/manual/mod/mod_http2.xml @@ -1049,4 +1049,37 @@ H2TLSCoolDownSecs 0 </usage> </directivesynopsis> + <directivesynopsis> + <name>H2EarlyHint</name> + <description>Add a response header to be picked up in 103 Early Hints</description> + <syntax>H2EarlyHint <em>name</em> <em>value</em></syntax> + <contextlist> + <context>server config</context> + <context>virtual host</context> + <context>directory</context> + <context>.htaccess</context> + </contextlist> + <compatibility>Available in version 2.5.1 and later.</compatibility> + + <usage> + <p> + <directive>H2EarlyHint</directive> allows adding a response + header before the real request processing is started. Such headers + are picked up for "103 Early Hints" intermediate responses. The main + purpose is to send "preload" information to client browsers. + </p><p> + <em>name</em> and <em>value</em> must be valid HTTP header fields + or will lead to failed responses. <directive>H2EarlyHints</directive> + must still be enabled to allow 103 intermediate responses to be sent. + This directive can be repeated several times and header fields of the + same names add. + </p> + <example><title>Example</title> + <highlight language="config"> +H2EarlyHint Link "</my.css>;rel=preload;as=style" + </highlight> + </example> + </usage> + </directivesynopsis> + </modulesynopsis> |