This Event is signaled from the caching object used in lib/exe/js.php when the validity of the JavaScript cache is determined. It can be used to influence how the JavaScript is cached.

$data is a cache object – refer inc/cache.php. You most probably want to modify it's internal variables like $key and $depends.

• Code related to this event used in any DokuWiki's files, plugins and templates
• Action Plugins
• Events
• PARSER_CACHE_USE