+=item C<%ReferrerComponents>
+
+C<%ReferrerComponents> is the hash to customize referrer checking behavior when
+C<$RestrictReferrer> is enabled, where you can whitelist or blacklist the
+components along with their query args. e.g.
+
+ Set( %ReferrerComponents,
+ ( '/Foo.html' => 1, '/Bar.html' => 0, '/Baz.html' => [ 'id', 'results' ] )
+ );
+
+With this, '/Foo.html' will be whitelisted, and '/Bar.html' will be blacklisted.
+'/Baz.html' with id/results query arguments will be whitelisted but blacklisted
+if there are other query arguments.
+
+=cut
+
+Set( %ReferrerComponents );