---
title: PositionOptions.maximumAge
slug: Web/API/PositionOptions/maximumAge
translation_of: Web/API/PositionOptions/maximumAge
---
<div>{{securecontext_header}}{{APIRef("Geolocation API")}}</div>

<p>La propriété <code><strong>PositionOptions.maximumAge</strong></code> est de type <code>long</code> positif indiquant l'âge maximal en millisecondes d'une position en cache possible qu'il est acceptable de renvoyer. Si la valeur est <code>0</code>, cela signifie que le périphérique ne peut pas utiliser une position mise en cache et doit tenter de récupérer la position actuelle réelle. Si la valeur est <code><a href="https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Global_Objects/Infinity">Infinity</a></code> l'appareil doit renvoyer une position mise en cache indépendamment de son âge.</p>

<h2 id="Syntax">Syntax</h2>

<pre class="syntaxbox"><var>positionOptions</var>.maximumAge = <var>timeLength</var>
</pre>

<h2 id="Specifications">Specifications</h2>

<table class="standard-table">
 <thead>
  <tr>
   <th scope="col">Specification</th>
   <th scope="col">Status</th>
   <th scope="col">Comment</th>
  </tr>
 </thead>
 <tbody>
  <tr>
   <td>{{SpecName('Geolocation', '#maximumage', 'PositionOptions.maximumAge')}}</td>
   <td>{{Spec2('Geolocation')}}</td>
   <td>Initial definition</td>
  </tr>
 </tbody>
</table>

<h2 id="Browser_compatibility">Browser compatibility</h2>

<p>{{ CompatibilityTable() }}</p>

<div id="compat-desktop">
<table class="compat-table">
 <tbody>
  <tr>
   <th>Feature</th>
   <th>Chrome</th>
   <th>Edge</th>
   <th>Firefox (Gecko)</th>
   <th>Internet Explorer</th>
   <th>Opera</th>
   <th>Safari</th>
  </tr>
  <tr>
   <td>Basic support</td>
   <td>5</td>
   <td>{{CompatVersionUnknown}}</td>
   <td>{{CompatGeckoDesktop("1.9.1")}}</td>
   <td>9</td>
   <td>10.60<br>
    Removed in 15.0<br>
    Reintroduced in 16.0</td>
   <td>5</td>
  </tr>
  <tr>
   <td>Secure context-only</td>
   <td>47</td>
   <td>{{CompatUnknown()}}</td>
   <td>{{CompatGeckoDesktop("55")}}</td>
   <td>{{CompatNo}}</td>
   <td>{{CompatVersionUnknown}}</td>
   <td>{{CompatVersionUnknown}}</td>
  </tr>
 </tbody>
</table>
</div>

<div id="compat-mobile">
<table class="compat-table">
 <tbody>
  <tr>
   <th>Feature</th>
   <th>Android</th>
   <th>Chrome for Android</th>
   <th>Edge</th>
   <th>Firefox Mobile (Gecko)</th>
   <th>IE Mobile</th>
   <th>Opera Mobile</th>
   <th>Safari Mobile</th>
  </tr>
  <tr>
   <td>Basic support</td>
   <td>{{CompatUnknown()}}</td>
   <td>{{CompatUnknown()}}</td>
   <td>{{CompatVersionUnknown}}</td>
   <td>{{CompatGeckoMobile("4")}}</td>
   <td>{{CompatUnknown()}}</td>
   <td>10.60</td>
   <td>{{CompatUnknown()}}</td>
  </tr>
  <tr>
   <td>Secure context-only</td>
   <td>{{CompatNo}}</td>
   <td>47</td>
   <td>{{CompatUnknown()}}</td>
   <td>{{CompatGeckoDesktop("55")}}</td>
   <td>{{CompatNo}}</td>
   <td>{{CompatVersionUnknown}}</td>
   <td>{{CompatVersionUnknown}}</td>
  </tr>
 </tbody>
</table>
</div>

<h2 id="See_also">See also</h2>

<ul>
 <li><a href="/en-US/docs/WebAPI/Using_geolocation">Using geolocation</a></li>
 <li>The {{domxref("PositionOptions")}} interface it belongs to.</li>
</ul>