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+---
+title: ServiceWorkerRegistration.navigationPreload
+slug: Web/API/ServiceWorkerRegistration/navigationPreload
+tags:
+  - API
+  - NavigationPreloadManager
+  - Offline
+  - Property
+  - Service Workers
+  - ServiceWorkerRegistration
+  - Workers
+  - navigationPreload
+translation_of: Web/API/ServiceWorkerRegistration/navigationPreload
+---
+<p>{{APIRef("Service Workers API")}}</p>
+
+<p><span class="seoSummary">{{domxref("ServiceWorkerRegistration")}} インターフェイスの <strong><code>navigationPreload</code></strong> 読み取り専用プロパティは、現在のサービスワーカー登録に関連する {{domxref("NavigationPreloadManager")}} を返します。</span></p>
+
+<h2 id="Syntax" name="Syntax">構文</h2>
+
+<pre class="syntaxbox">var <em>navigationPreloadManager</em> = <em>serviceWorkerRegistration</em>.navigationPreload;</pre>
+
+<h3 id="Value" name="Value">値</h3>
+
+<p>{{domxref("NavigationPreloadManager")}} のインスタンス。</p>
+
+<h2 id="Specifications" name="Specifications">仕様</h2>
+
+<table class="standard-table">
+ <tbody>
+  <tr>
+   <th scope="col">仕様</th>
+   <th scope="col">状態</th>
+   <th scope="col">コメント</th>
+  </tr>
+  <tr>
+   <td>{{SpecName('Service Workers','#service-worker-registration-navigationpreload','navigationPreload')}}</td>
+   <td>{{Spec2('Service Workers')}}</td>
+   <td>初期定義</td>
+  </tr>
+ </tbody>
+</table>
+
+<h2 id="Browser_Compatibility" name="Browser_Compatibility">ブラウザーの互換性</h2>
+
+
+
+<p>{{Compat("api.ServiceWorkerRegistration.navigationPreload")}}</p>