---
title: extension.isAllowedFileSchemeAccess()
slug: Mozilla/Add-ons/WebExtensions/API/extension/isAllowedFileSchemeAccess
tags:
  - API
  - Add-ons
  - Extension
  - Extensions
  - Méthode
  - Non-standard
  - Reference
  - WebExtensions
  - isAllowedFileSchemeAccess
translation_of: Mozilla/Add-ons/WebExtensions/API/extension/isAllowedFileSchemeAccess
---
<div>{{AddonSidebar()}}</div>

<div>Renvoie <code>true</code> si l'extension peut accéder au schéma "file://", sinon <code>false</code>.</div>

<div></div>

<div>
<p>C'est une fonction asynchrone qui renvoie une <code><a href="/fr/docs/Web/JavaScript/Reference/Objets_globaux/Promise">Promise</a></code>.</p>
</div>

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

<pre class="brush: js">var isAllowed = browser.extension.isAllowedFileSchemeAccess()
</pre>

<h3 id="Paramètres">Paramètres</h3>

<p>None.</p>

<h3 id="Valeur_retournée">Valeur retournée</h3>

<p>Une <code><a href="/fr/docs/Web/JavaScript/Reference/Objets_globaux/Promise">Promise</a></code> qui sera remplie avec un booléen : <code>true</code> si l'extension est autorisée à accéder aux URLs "file://", sinon <code>false</code>.</p>

<p>Firefox retournera toujours <code>false</code>.</p>

<h2 id="Compatibilité_du_navigateur">Compatibilité du navigateur</h2>

<p>{{Compat("webextensions.api.extension.isAllowedFileSchemeAccess")}}</p>

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

<pre class="brush: js">function logIsAllowed(answer) {
  console.log(`Is allowed: ${answer}`);
}

var isAllowed = browser.extension.isAllowedFileSchemeAccess();
isAllowed.then(logIsAllowed);</pre>

<p>{{WebExtExamples}}</p>

<div class="note"><p><strong>Note :</strong></p>

<p>Cette API est basée sur l'API Chromium <a href="https://developer.chrome.com/extensions/extension"><code>chrome.extension</code></a>. Cette documentation est dérivée de <a href="https://chromium.googlesource.com/chromium/src/+/master/chrome/common/extensions/api/extension.json"><code>extension.json</code></a> dans le code Chromium.</p>

<p>Les données de compatibilité relatives à Microsoft Edge sont fournies par Microsoft Corporation et incluses ici sous la licence Creative Commons Attribution 3.0 pour les États-Unis.</p>
</div>

<div class="hidden">
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