add_header isn&#39;t used for rewriting the header. Currently  nginx supports only &quot;no-<span class="il">cache</span>&quot; and &quot;max-age=###&quot; values<br>
in &quot;<span class="il">Cache</span>-<span class="il">Control</span>.<span class="il"></span><span class="il"></span><span class="il"></span>