---
title: captivePortal.canonicalURL
slug: Mozilla/Add-ons/WebExtensions/API/captivePortal/canonicalURL
tags:
  - API
  - Add-ons
  - Extensions
  - canonicalURL
  - captivePortal
translation_of: Mozilla/Add-ons/WebExtensions/API/captivePortal/canonicalURL
---
{{AddonSidebar()}}

Renvoyer l'URL canonique de la page de détection du portail des prisonniers. En lecture seule.

## Compatibilité du navigateur

{{Compat("webextensions.api.captivePortal.canonicalURL")}}

{{WebExtExamples}}

> **Note :**
>
> Cette API est basée sur l'API [`chrome.tabs`](https://developer.chrome.com/extensions/tabs#property-TAB_ID_NONE) de Chromium. Cette documentation est dérivée de [`tabs.json`](https://chromium.googlesource.com/chromium/src/+/master/chrome/common/extensions/api/tabs.json) dans le code Chromium.
>
> Les données de compatibilité Microsoft Edge sont fournies par Microsoft Corporation et sont incluses ici sous la licence américaine Creative Commons Attribution 3.0.

<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
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</pre></div>