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---
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">
<pre>// Copyright 2015 The Chromium Authors. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
</pre>
</div>
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