---
title: EventSource.close()
slug: Web/API/EventSource/close
tags:
  - API
  - EventSource
  - Evénement serveur
  - Fonction
  - Méthode
  - Reference
  - Server-sent events
  - close
translation_of: Web/API/EventSource/close
---
<div>{{APIRef('WebSockets API')}}</div>

<p>La fonction <code><strong>close()</strong></code> de l'interface {{domxref("EventSource")}} coupe la connection, si existante, et affecte à la variable {{domxref("EventSource.readyState")}} la valeur <code>2</code> (closed).</p>

<div class="note">
<p><strong>Note</strong>: Si la connexion est déjà fermé, la fonction n'agit pas.</p>
</div>

<h2 id="Syntaxe">Syntaxe</h2>

<pre class="syntaxbox">eventSource.close();</pre>

<h3 id="Paramètres">Paramètres</h3>

<p>Aucun.</p>

<h3 id="Valeur_de_retour">Valeur de retour</h3>

<p>Nulle.</p>

<h2 id="Exemples">Exemples</h2>

<pre class="brush: js">var bouton = document.querySelector('button');
var evtSource = new EventSource('sse.php');

bouton.onclick = function() {
  console.log('Connection fermée');
  evtSource.close();
}
</pre>

<div class="note">
<p><strong>Note</strong>: Vous pouvez trouver un exemple complet sur GitHub — voir <a href="https://github.com/mdn/dom-examples/tree/master/server-sent-events">Demo simple de SSE utilisant PHP.</a></p>
</div>

<h2 id="Spécifications">Spécifications</h2>

<table class="standard-table">
 <tbody>
  <tr>
   <th scope="col">Specification</th>
   <th scope="col">Status</th>
   <th scope="col">Comment</th>
  </tr>
  <tr>
   <td>{{SpecName('HTML WHATWG', "comms.html#dom-eventsource-close", "close()")}}</td>
   <td>{{Spec2('HTML WHATWG')}}</td>
   <td>Initial definition</td>
  </tr>
 </tbody>
</table>

<ul>
</ul>

<h2 id="Compatibilité_des_navigateurs">Compatibilité des navigateurs</h2>

<div>{{CompatibilityTable}}</div>

<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>EventSource support</td>
   <td>6</td>
   <td>{{CompatNo}}</td>
   <td>{{CompatGeckoDesktop("6.0")}}</td>
   <td>{{CompatNo}}</td>
   <td>{{CompatVersionUnknown}}</td>
   <td>5</td>
  </tr>
  <tr>
   <td>Disponible en workers dédiés et partagés<sup>[1]</sup></td>
   <td>{{CompatVersionUnknown}}</td>
   <td>{{CompatNo}}</td>
   <td>{{CompatGeckoDesktop("53.0")}}</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>Firefox Mobile (Gecko)</th>
   <th>IE Mobile</th>
   <th>Opera Mobile</th>
   <th>Safari Mobile</th>
  </tr>
  <tr>
   <td>EventSource support</td>
   <td>4.4</td>
   <td>45</td>
   <td>{{CompatNo}}</td>
   <td>12</td>
   <td>4.1</td>
  </tr>
  <tr>
   <td>Disponible en workers dédiés et partagés<sup>[1]</sup></td>
   <td>{{CompatVersionUnknown}}</td>
   <td>{{CompatGeckoMobile("53.0")}}</td>
   <td>{{CompatNo}}</td>
   <td>{{CompatVersionUnknown}}</td>
   <td>{{CompatVersionUnknown}}</td>
  </tr>
 </tbody>
</table>
</div>

<p>[1] But <a href="https://github.com/w3c/ServiceWorker/issues/947">not service workers as yet</a>.</p>

<h2 id="Voir_aussi">Voir aussi</h2>

<ul>
 <li>{{domxref("EventSource")}}</li>
</ul>