class="s2">"</span><span class="s">^(.*?;)?(user=jason)(;.*)?$"</span>
  <span class="s">...</span>
</code></pre></div></div><p>If more than one header is provided, then all of the corresponding headers must match for the rule to apply.</p><p>Multiple criteria can be set simultaneously. In such a case, AND semantics apply. For example, the following rule only applies if the source of the request is “reviews:v2” AND the “cookie” header containing “user=jason” is present.</p><div class="language-y