s not available.

 <p>
 For example: <code>containsHeaderString("cache-control", ",", "no-store"::equalsIgnoreCase)</code> will return <code>true</code> if
 a <code>Cache-Control</code> header exists that has the value <code>no-store</code>, the value <code>No-Store</code> or the value
 <code>Max-Age, NO-STORE, no-transform</code>, but <code>false</code> when it has the value <code>no-store;no-transform</code>
 (missing comma), or the value <code>no - store</code> (whitespace within value).</div>
<dl class=