====== ACTION_HEADERS_SEND ======

---- dataentry event ----
Description:    modify the HTTP headers sent by Dokuwiki
DefaultAction:  output all the headers in order using the header() function
Preventable:    yes
Added_dt:       2006-04-25
----

This event is signalled by [[xref>act_dispatch()]] in [[xref>inc/actions.php]] after preparing the headers and before loading the template.


===== Passed Data =====
The passed [[xref>Doku_Event]] object has the fields: ''$data'' and ''$result''.

The ''$data'' field is an array of header strings. This array has default one entry:
  * the DokuWiki header ''%%'Content-Type: text/html; charset=utf-8'%%''. 

The BEFORE handler of this event can add/modify/delete the headers in the ''$data'' field. The event data must remain an array, even if emptied. The default action [[xref>act_sendheaders()]] will output the headers, but this can be prevented by ''preventDefault()''.

The ''$result'' field is always null, because the default action don't set this field. The AFTER event handlers comes (default) after outputting the headers.


===== See also =====

  * [[codesearch>ACTION_HEADERS_SEND|Code related to this event]] used in any DokuWiki's files, plugins and templates
  * [[devel:Action Plugins]]
  * [[devel:Events]]