When the action is changed to show after a POST request, DokuWiki will do a redirect. This event allows you to modify the redirect or prevent it altogether. It's signaled from act_redirect() in inc/actions.php.

• $data['id'] – the page id the redirect goes to
• $data['fragment'] – a fragment identifier if any (hash part of the URL)
• $data['preact'] – the (uncleaned) action before it was changed to show

The following plugins are known to handle this event and their source code may be a good start for understanding and implementing a handler yourself.

• include, sioc

• Action Plugins
• Events