$match arrgument not being used anywhere

public function trigger404($match = null)

same function variable $param is not being used:

$params = array_map(function ($match, $index) use ($matches)

Locate the public trigger404($match = null) function and inspect the array_map callback that receives $match and $index. Confirm which argument is intended to be used and whether existing tests cover this path. Done means the intended match value is handled consistently and the relevant test coverage passes.

Written by the indexing model from the issue text.