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enthalten.</a></p></div></div><div class="main-wrapper"><div class="sidebar-container"><aside id="sidebar-quicklinks" class="sidebar" data-macro="APIRef"><button type="button" class="button action backdrop" aria-label="Collapse sidebar"><span class="button-wrap"></span></button><nav aria-label="Related Topics" class="sidebar-inner"><header class="sidebar-actions"><section class="sidebar-filter-container"><div class="sidebar-filter "><label id="sidebar-filter-label" class="sidebar-filter-label" for="sidebar-filter-input"><span class="icon icon-filter"></span><span class="visually-hidden">Filter sidebar</span></label><input id="sidebar-filter-input" autoComplete="off" class="sidebar-filter-input-field false" type="text" placeholder="Filter" value=""/><button type="button" class="button action has-icon clear-sidebar-filter-button"><span class="button-wrap"><span class="icon icon-cancel "></span><span class="visually-hidden">Clear filter input</span></span></button></div></section></header><div class="sidebar-inner-nav"><div class="in-nav-toc"><div class="document-toc-container"><section class="document-toc"><header><h2 class="document-toc-heading">In diesem Artikel</h2></header><ul class="document-toc-list"><li class="document-toc-item "><a class="document-toc-link" href="#instanz-eigenschaften">Instanz-Eigenschaften</a></li><li class="document-toc-item "><a class="document-toc-link" href="#instanz-methoden">Instanz-Methoden</a></li><li class="document-toc-item "><a class="document-toc-link" href="#ereignisse">Ereignisse</a></li><li class="document-toc-item "><a class="document-toc-link" href="#beispiele">Beispiele</a></li><li class="document-toc-item "><a class="document-toc-link" href="#spezifikationen">Spezifikationen</a></li><li class="document-toc-item "><a class="document-toc-link" href="#browser-kompatibilität">Browser-Kompatibilität</a></li><li class="document-toc-item "><a class="document-toc-link" href="#siehe_auch">Siehe auch</a></li></ul></section></div></div><div class="sidebar-body"><ol><li class="section"><a href="/de/docs/Web/API/Service_Worker_API">Service Worker API</a></li><li class="section"><em><a href="/de/docs/Web/API/ServiceWorkerGlobalScope" aria-current="page"><code>ServiceWorkerGlobalScope</code></a></em></li><li class="toggle"><details open=""><summary>Instanzeigenschaften</summary><ol><li><a href="/de/docs/Web/API/ServiceWorkerGlobalScope/clients"><code>clients</code></a></li><li><a href="/de/docs/Web/API/ServiceWorkerGlobalScope/cookieStore"><code>cookieStore</code></a></li><li><a href="/de/docs/Web/API/ServiceWorkerGlobalScope/registration"><code>registration</code></a></li><li><a href="/de/docs/Web/API/ServiceWorkerGlobalScope/serviceWorker"><code>serviceWorker</code></a></li></ol></details></li><li class="toggle"><details open=""><summary>Instanzmethoden</summary><ol><li><a href="/de/docs/Web/API/ServiceWorkerGlobalScope/skipWaiting"><code>skipWaiting()</code></a></li></ol></details></li><li class="toggle"><details open=""><summary>Events</summary><ol><li><a href="/de/docs/Web/API/ServiceWorkerGlobalScope/activate_event"><code>activate</code></a></li><li><a href="/de/docs/Web/API/ServiceWorkerGlobalScope/backgroundfetchabort_event"><code>backgroundfetchabort</code></a></li><li><a href="/de/docs/Web/API/ServiceWorkerGlobalScope/backgroundfetchclick_event"><code>backgroundfetchclick</code></a></li><li><a href="/de/docs/Web/API/ServiceWorkerGlobalScope/backgroundfetchfail_event"><code>backgroundfetchfail</code></a></li><li><a href="/de/docs/Web/API/ServiceWorkerGlobalScope/backgroundfetchsuccess_event"><code>backgroundfetchsuccess</code></a></li><li><a href="/de/docs/Web/API/ServiceWorkerGlobalScope/canmakepayment_event"><code>canmakepayment</code></a></li><li><a href="/de/docs/Web/API/ServiceWorkerGlobalScope/contentdelete_event"><code>contentdelete</code></a></li><li><a href="/de/docs/Web/API/ServiceWorkerGlobalScope/cookiechange_event"><code>cookiechange</code></a></li><li><a href="/de/docs/Web/API/ServiceWorkerGlobalScope/fetch_event"><code>fetch</code></a></li><li><a href="/de/docs/Web/API/ServiceWorkerGlobalScope/install_event"><code>install</code></a></li><li><a href="/de/docs/Web/API/ServiceWorkerGlobalScope/message_event"><code>message</code></a></li><li><a href="/de/docs/Web/API/ServiceWorkerGlobalScope/messageerror_event"><code>messageerror</code></a></li><li><a href="/de/docs/Web/API/ServiceWorkerGlobalScope/notificationclick_event"><code>notificationclick</code></a></li><li><a href="/de/docs/Web/API/ServiceWorkerGlobalScope/notificationclose_event"><code>notificationclose</code></a></li><li><a href="/de/docs/Web/API/ServiceWorkerGlobalScope/paymentrequest_event"><code>paymentrequest</code></a></li><li><a href="/de/docs/Web/API/ServiceWorkerGlobalScope/periodicsync_event"><code>periodicsync</code></a></li><li><a href="/de/docs/Web/API/ServiceWorkerGlobalScope/push_event"><code>push</code></a></li><li><a href="/de/docs/Web/API/ServiceWorkerGlobalScope/pushsubscriptionchange_event"><code>pushsubscriptionchange</code></a></li><li><a href="/de/docs/Web/API/ServiceWorkerGlobalScope/sync_event"><code>sync</code></a></li></ol></details></li><li class="toggle"><details open=""><summary>Vererbung</summary><ol><li><a href="/de/docs/Web/API/WorkerGlobalScope"><code>WorkerGlobalScope</code></a></li><li><a href="/de/docs/Web/API/EventTarget"><code>EventTarget</code></a></li></ol></details></li><li class="toggle"><details open=""><summary>Verwandte Seiten für Service Workers API</summary><ol><li><a href="/de/docs/Web/API/Cache"><code>Cache</code></a></li><li><a href="/de/docs/Web/API/CacheStorage"><code>CacheStorage</code></a></li><li><a href="/de/docs/Web/API/Client"><code>Client</code></a></li><li><a href="/de/docs/Web/API/Clients"><code>Clients</code></a></li><li><a href="/de/docs/Web/API/ExtendableEvent"><code>ExtendableEvent</code></a></li><li><a href="/de/docs/Web/API/ExtendableMessageEvent"><code>ExtendableMessageEvent</code></a></li><li><a href="/de/docs/Web/API/FetchEvent"><code>FetchEvent</code></a></li><li><a href="/de/docs/Web/API/InstallEvent"><code>InstallEvent</code></a></li><li><a href="/de/docs/Web/API/NavigationPreloadManager"><code>NavigationPreloadManager</code></a></li><li><a href="/de/docs/Web/API/Navigator/serviceWorker"><code>Navigator.serviceWorker</code></a></li><li><a href="/de/docs/Web/API/ServiceWorker"><code>ServiceWorker</code></a></li><li><a href="/de/docs/Web/API/ServiceWorkerContainer"><code>ServiceWorkerContainer</code></a></li><li><a href="/de/docs/Web/API/ServiceWorkerRegistration"><code>ServiceWorkerRegistration</code></a></li><li><a href="/de/docs/Web/API/Window/caches"><code>Window.caches</code></a></li><li><a href="/de/docs/Web/API/WindowClient"><code>WindowClient</code></a></li><li><a href="/de/docs/Web/API/WorkerGlobalScope/caches"><code>WorkerGlobalScope.caches</code></a></li><li><a href="/de/docs/Web/API/WorkerNavigator/serviceWorker"><code>WorkerNavigator.serviceWorker</code></a></li></ol></details></li></ol></div></div><section class="place side"></section></nav></aside><div class="toc-container"><aside class="toc"><nav><div class="document-toc-container"><section class="document-toc"><header><h2 class="document-toc-heading">In diesem Artikel</h2></header><ul class="document-toc-list"><li class="document-toc-item "><a class="document-toc-link" href="#instanz-eigenschaften">Instanz-Eigenschaften</a></li><li class="document-toc-item "><a class="document-toc-link" href="#instanz-methoden">Instanz-Methoden</a></li><li class="document-toc-item "><a class="document-toc-link" href="#ereignisse">Ereignisse</a></li><li class="document-toc-item "><a class="document-toc-link" href="#beispiele">Beispiele</a></li><li class="document-toc-item "><a class="document-toc-link" href="#spezifikationen">Spezifikationen</a></li><li class="document-toc-item "><a class="document-toc-link" href="#browser-kompatibilität">Browser-Kompatibilität</a></li><li class="document-toc-item "><a class="document-toc-link" href="#siehe_auch">Siehe auch</a></li></ul></section></div></nav></aside><section class="place side"></section></div></div><main id="content" class="main-content "><article class="main-page-content" lang="de"><header><h1>ServiceWorkerGlobalScope</h1></header><div class="section-content"><div class="notecard secure"><p><strong>Sicherer Kontext:</strong> Diese Funktion ist nur in <a href="/de/docs/Web/Security/Secure_Contexts">sicheren Kontexten</a> (HTTPS) in einigen oder allen <a href="#browser-kompatibilität">unterstützenden Browsern</a> verfügbar.</p></div><div class="notecard note"> <p><strong>Hinweis:</strong> Dieses Feature ist nur verfügbar in <a href="/de/docs/Web/API/Service_Worker_API">Service Workers</a>.</p> </div> <p>Das <strong><code>ServiceWorkerGlobalScope</code></strong> Interface der <a href="/de/docs/Web/API/Service_Worker_API">Service Worker API</a> repräsentiert den globalen Ausführungskontext eines Service Workers.</p> <p>Entwickler sollten beachten, dass der Zustand des ServiceWorkers nicht über den Beendigungs-/Neustartzyklus hinweg beibehalten wird. Jeder Ereignishandler sollte daher annehmen, dass er mit einem leeren, standardmäßigen globalen Zustand aufgerufen wird.</p> <p>Nach erfolgreicher Registrierung kann und wird ein Service Worker beendet, wenn er inaktiv ist, um Speicher und Prozessorleistung zu sparen. Ein aktiver Service Worker wird automatisch neu gestartet, um auf Ereignisse zu reagieren, wie zum Beispiel <a href="/de/docs/Web/API/ServiceWorkerGlobalScope/fetch_event"><code>fetch</code></a> oder <a href="/de/docs/Web/API/ServiceWorkerGlobalScope/message_event"><code>message</code></a>.</p> <p>Darüber hinaus sind synchrone Anfragen innerhalb eines Service Workers nicht erlaubt — es können nur asynchrone Anfragen verwendet werden, wie sie zum Beispiel über die Methode <a href="/de/docs/Web/API/WorkerGlobalScope/fetch"><code>fetch()</code></a> initiiert werden.</p> <p>Dieses Interface erbt vom <a href="/de/docs/Web/API/WorkerGlobalScope"><code>WorkerGlobalScope</code></a> Interface und dessen Elternteil <a href="/de/docs/Web/API/EventTarget"><code>EventTarget</code></a>.</p><svg viewBox="-1 -1 650 42" preserveAspectRatio="xMinYMin meet"> <a style="text-decoration: none;" href="/de/docs/Web/API/EventTarget"> <rect x="0" y="0" width="88" height="25" fill="#fff" stroke="#D4DDE4" stroke-width="2px"></rect> <text x="44" y="16" font-size="10px" fill="#4D4E53" text-anchor="middle"> EventTarget </text> </a> <line x1="88" y1="14" x2="118" y2="14" stroke="#D4DDE4"></line> <polyline points="88,14 98,9 98,19 88,14" stroke="#D4DDE4" fill="#fff"></polyline> <a style="text-decoration: none;" href="/de/docs/Web/API/WorkerGlobalScope"> <rect x="118" y="0" width="136" height="25" fill="#fff" stroke="#D4DDE4" stroke-width="2px"></rect> <text x="186" y="16" font-size="10px" fill="#4D4E53" text-anchor="middle"> WorkerGlobalScope </text> </a> <line x1="254" y1="14" x2="284" y2="14" stroke="#D4DDE4"></line> <polyline points="254,14 264,9 264,19 254,14" stroke="#D4DDE4" fill="#fff"></polyline> <a style="text-decoration: none;" href="/de/docs/Web/API/ServiceWorkerGlobalScope" aria-current="page"> <rect x="284" y="0" width="192" height="25" fill="#F4F7F8" stroke="#D4DDE4" stroke-width="2px"></rect> <text x="380" y="16" font-size="10px" fill="#4D4E53" text-anchor="middle"> ServiceWorkerGlobalScope </text> </a></svg></div><section aria-labelledby="instanz-eigenschaften"><h2 id="instanz-eigenschaften"><a href="#instanz-eigenschaften">Instanz-Eigenschaften</a></h2><div class="section-content"><p><em>Dieses Interface erbt Eigenschaften vom <a href="/de/docs/Web/API/WorkerGlobalScope"><code>WorkerGlobalScope</code></a> Interface und dessen Elternteil <a href="/de/docs/Web/API/EventTarget"><code>EventTarget</code></a>.</em></p> <dl> <dt id="serviceworkerglobalscope.clients"><a href="/de/docs/Web/API/ServiceWorkerGlobalScope/clients"><code>ServiceWorkerGlobalScope.clients</code></a> <span class="badge inline readonly" title="Dieser Wert kann nicht geändert werden.">Nur lesbar </span></dt> <dd> <p>Beinhaltet das <a href="/de/docs/Web/API/Clients"><code>Clients</code></a> Objekt, das mit dem Service Worker verbunden ist.</p> </dd> <dt id="serviceworkerglobalscope.cookiestore"><a href="/de/docs/Web/API/ServiceWorkerGlobalScope/cookieStore"><code>ServiceWorkerGlobalScope.cookieStore</code></a> <span class="badge inline readonly" title="Dieser Wert kann nicht geändert werden.">Nur lesbar </span> <abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></dt> <dd> <p>Gibt eine Referenz auf das <a href="/de/docs/Web/API/CookieStore"><code>CookieStore</code></a> Objekt zurück, das mit dem Service Worker verbunden ist.</p> </dd> <dt id="serviceworkerglobalscope.registration"><a href="/de/docs/Web/API/ServiceWorkerGlobalScope/registration"><code>ServiceWorkerGlobalScope.registration</code></a> <span class="badge inline readonly" title="Dieser Wert kann nicht geändert werden.">Nur lesbar </span></dt> <dd> <p>Beinhaltet das <a href="/de/docs/Web/API/ServiceWorkerRegistration"><code>ServiceWorkerRegistration</code></a> Objekt, das die Registrierung des Service Workers repräsentiert.</p> </dd> <dt id="serviceworkerglobalscope.serviceworker"><a href="/de/docs/Web/API/ServiceWorkerGlobalScope/serviceWorker"><code>ServiceWorkerGlobalScope.serviceWorker</code></a> <span class="badge inline readonly" title="Dieser Wert kann nicht geändert werden.">Nur lesbar </span></dt> <dd> <p>Beinhaltet das <a href="/de/docs/Web/API/ServiceWorker"><code>ServiceWorker</code></a> Objekt, das den Service Worker repräsentiert.</p> </dd> </dl></div></section><section aria-labelledby="instanz-methoden"><h2 id="instanz-methoden"><a href="#instanz-methoden">Instanz-Methoden</a></h2><div class="section-content"><p><em>Dieses Interface erbt Methoden vom <a href="/de/docs/Web/API/WorkerGlobalScope"><code>WorkerGlobalScope</code></a> Interface und dessen Elternteil <a href="/de/docs/Web/API/EventTarget"><code>EventTarget</code></a>.</em></p> <dl> <dt id="serviceworkerglobalscope.skipwaiting"><a href="/de/docs/Web/API/ServiceWorkerGlobalScope/skipWaiting"><code>ServiceWorkerGlobalScope.skipWaiting()</code></a></dt> <dd> <p>Erlaubt es der aktuellen Registrierung des Service Workers, vom Wartezustand in den aktiven Zustand zu wechseln, während Service Worker Clients es verwenden.</p> </dd> </dl></div></section><section aria-labelledby="ereignisse"><h2 id="ereignisse"><a href="#ereignisse">Ereignisse</a></h2><div class="section-content"><p>Hören Sie auf dieses Ereignis mit <a href="/de/docs/Web/API/EventTarget/addEventListener"><code>addEventListener()</code></a> oder indem Sie einen Ereignis-Listener auf die <code>oneventname</code>-Eigenschaft dieses Interfaces zuweisen.</p> <dl> <dt id="activate"><a href="/de/docs/Web/API/ServiceWorkerGlobalScope/activate_event"><code>activate</code></a></dt> <dd> <p>Tritt auf, wenn eine <a href="/de/docs/Web/API/ServiceWorkerRegistration"><code>ServiceWorkerRegistration</code></a> einen neuen <a href="/de/docs/Web/API/ServiceWorkerRegistration/active"><code>ServiceWorkerRegistration.active</code></a> Worker erwirbt.</p> </dd> <dt id="backgroundfetchabort"><a href="/de/docs/Web/API/ServiceWorkerGlobalScope/backgroundfetchabort_event"><code>backgroundfetchabort</code></a> <abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></dt> <dd> <p>Wird ausgelöst, wenn eine Operation des <a href="/de/docs/Web/API/Background_Fetch_API">Background Fetch</a> vom Benutzer oder der App abgebrochen wurde.</p> </dd> <dt id="backgroundfetchclick"><a href="/de/docs/Web/API/ServiceWorkerGlobalScope/backgroundfetchclick_event"><code>backgroundfetchclick</code></a> <abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></dt> <dd> <p>Wird ausgelöst, wenn der Benutzer auf die Benutzeroberfläche für eine <a href="/de/docs/Web/API/Background_Fetch_API">Background Fetch</a> Operation geklickt hat.</p> </dd> <dt id="backgroundfetchfail"><a href="/de/docs/Web/API/ServiceWorkerGlobalScope/backgroundfetchfail_event"><code>backgroundfetchfail</code></a> <abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></dt> <dd> <p>Wird ausgelöst, wenn mindestens eine der Anfragen in einer <a href="/de/docs/Web/API/Background_Fetch_API">Background Fetch</a> Operation fehlgeschlagen ist.</p> </dd> <dt id="backgroundfetchsuccess"><a href="/de/docs/Web/API/ServiceWorkerGlobalScope/backgroundfetchsuccess_event"><code>backgroundfetchsuccess</code></a> <abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></dt> <dd> <p>Wird ausgelöst, wenn alle Anfragen in einer <a href="/de/docs/Web/API/Background_Fetch_API">Background Fetch</a> Operation erfolgreich waren.</p> </dd> <dt id="canmakepayment"><a href="/de/docs/Web/API/ServiceWorkerGlobalScope/canmakepayment_event"><code>canmakepayment</code></a> <abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></dt> <dd> <p>Wird auf dem Service Worker einer Zahlungs-App ausgelöst, um zu überprüfen, ob sie bereit ist, eine Zahlung zu bearbeiten. Speziell wird es ausgelöst, wenn die Händlerwebsite den <a href="/de/docs/Web/API/PaymentRequest/PaymentRequest"><code>PaymentRequest()</code></a> Konstruktor aufruft.</p> </dd> <dt id="contentdelete"><a href="/de/docs/Web/API/ServiceWorkerGlobalScope/contentdelete_event"><code>contentdelete</code></a> <abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></dt> <dd> <p>Tritt auf, wenn ein Element aus dem <a href="/de/docs/Web/API/ContentIndex"><code>ContentIndex</code></a> entfernt wird.</p> </dd> <dt id="cookiechange"><a href="/de/docs/Web/API/ServiceWorkerGlobalScope/cookiechange_event"><code>cookiechange</code></a> <abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></dt> <dd> <p>Wird ausgelöst, wenn eine Cookie-Änderung aufgetreten ist, die mit der Cookie-Änderungs-Abonnementliste des Service Workers übereinstimmt.</p> </dd> <dt id="fetch"><a href="/de/docs/Web/API/ServiceWorkerGlobalScope/fetch_event"><code>fetch</code></a></dt> <dd> <p>Tritt auf, wenn ein <a href="/de/docs/Web/API/WorkerGlobalScope/fetch"><code>fetch()</code></a> aufgerufen wird.</p> </dd> <dt id="install"><a href="/de/docs/Web/API/ServiceWorkerGlobalScope/install_event"><code>install</code></a></dt> <dd> <p>Tritt auf, wenn eine <a href="/de/docs/Web/API/ServiceWorkerRegistration"><code>ServiceWorkerRegistration</code></a> einen neuen <a href="/de/docs/Web/API/ServiceWorkerRegistration/installing"><code>ServiceWorkerRegistration.installing</code></a> Worker erwirbt.</p> </dd> <dt id="message"><a href="/de/docs/Web/API/ServiceWorkerGlobalScope/message_event"><code>message</code></a></dt> <dd> <p>Tritt auf, wenn eingehende Nachrichten im Empfang festgestellt werden. Kontrollierte Seiten können die Methode <a href="/de/docs/Web/API/MessagePort/postMessage"><code>MessagePort.postMessage()</code></a> verwenden, um Nachrichten an Service Workers zu senden.</p> </dd> <dt id="messageerror"><a href="/de/docs/Web/API/ServiceWorkerGlobalScope/messageerror_event"><code>messageerror</code></a></dt> <dd> <p>Tritt auf, wenn eingehende Nachrichten nicht deserialisiert werden können.</p> </dd> <dt id="notificationclick"><a href="/de/docs/Web/API/ServiceWorkerGlobalScope/notificationclick_event"><code>notificationclick</code></a></dt> <dd> <p>Tritt auf, wenn ein Benutzer auf eine angezeigte Benachrichtigung klickt.</p> </dd> <dt id="notificationclose"><a href="/de/docs/Web/API/ServiceWorkerGlobalScope/notificationclose_event"><code>notificationclose</code></a></dt> <dd> <p>Tritt auf, wenn ein Benutzer eine angezeigte Benachrichtigung schließt.</p> </dd> <dt id="paymentrequest"><a href="/de/docs/Web/API/ServiceWorkerGlobalScope/paymentrequest_event"><code>paymentrequest</code></a> <abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></dt> <dd> <p>Wird in einer Zahlungs-App ausgelöst, wenn ein Zahlungsablauf auf der Händlerwebsite über die Methode <a href="/de/docs/Web/API/PaymentRequest/show"><code>PaymentRequest.show()</code></a> eingeleitet wurde.</p> </dd> <dt id="sync"><a href="/de/docs/Web/API/ServiceWorkerGlobalScope/sync_event"><code>sync</code></a></dt> <dd> <p>Wird ausgelöst, wenn ein Aufruf an <a href="/de/docs/Web/API/SyncManager/register"><code>SyncManager.register</code></a> von einer Service Worker Client-Seite gemacht wird. Der Versuch, zu synchronisieren, wird entweder sofort unternommen, wenn das Netzwerk verfügbar ist, oder sobald das Netzwerk verfügbar wird.</p> </dd> <dt id="periodicsync"><a href="/de/docs/Web/API/ServiceWorkerGlobalScope/periodicsync_event"><code>periodicsync</code></a> <abbr class="icon icon-experimental" title="Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert."> <span class="visually-hidden">Experimentell</span> </abbr></dt> <dd> <p>Tritt bei periodischen Intervallen auf, die beim Registrieren eines <a href="/de/docs/Web/API/PeriodicSyncManager"><code>PeriodicSyncManager</code></a> festgelegt wurden.</p> </dd> <dt id="push"><a href="/de/docs/Web/API/ServiceWorkerGlobalScope/push_event"><code>push</code></a></dt> <dd> <p>Tritt auf, wenn eine Server-Push-Benachrichtigung empfangen wird.</p> </dd> <dt id="pushsubscriptionchange"><a href="/de/docs/Web/API/ServiceWorkerGlobalScope/pushsubscriptionchange_event"><code>pushsubscriptionchange</code></a></dt> <dd> <p>Tritt auf, wenn ein Push-Abonnement ungültig geworden ist oder kurz davor steht ungültig zu werden (z.B. wenn ein Push-Dienst eine Ablaufzeit setzt).</p> </dd> </dl></div></section><section aria-labelledby="beispiele"><h2 id="beispiele"><a href="#beispiele">Beispiele</a></h2><div class="section-content"><p>Dieses Code-Snippet stammt aus dem <a href="https://github.com/GoogleChrome/samples/blob/gh-pages/service-worker/prefetch/service-worker.js" class="external" target="_blank">Service Worker Prefetch-Beispiel</a> (siehe <a href="https://googlechrome.github.io/samples/service-worker/prefetch/" class="external" target="_blank">Prefetch-Beispiel live</a>.) Der <a href="/de/docs/Web/API/ServiceWorkerGlobalScope/fetch_event"><code>onfetch</code></a> Ereignishandler hört auf das <code>fetch</code> Ereignis. Bei Auslösung gibt der Code ein Versprechen zurück, das auf die erste passende Anfrage im <a href="/de/docs/Web/API/Cache"><code>Cache</code></a> Objekt auflöst. Wenn keine Übereinstimmung gefunden wird, holt der Code eine Antwort aus dem Netzwerk.</p> <p>Der Code behandelt auch Ausnahmen, die von der <a href="/de/docs/Web/API/WorkerGlobalScope/fetch"><code>fetch()</code></a> Operation ausgelöst werden. Beachten Sie, dass eine HTTP-Fehlerantwort (z.B. 404) keine Ausnahme auslöst. Sie wird ein normales Antwortobjekt zurückgeben, das den entsprechenden Fehlercode gesetzt hat.</p> <div class="code-example"><div class="example-header"><span class="language-name">js</span></div><pre class="brush: js notranslate"><code>self.addEventListener("fetch", (event) => { console.log("Handling fetch event for", event.request.url); event.respondWith( caches.match(event.request).then((response) => { if (response) { console.log("Found response in cache:", response); return response; } console.log("No response found in cache. About to fetch from network…"); return fetch(event.request).then( (response) => { console.log("Response from network is:", response); return response; }, (error) => { console.error("Fetching failed:", error); throw error; }, ); }), ); }); </code></pre></div></div></section><h2 id="spezifikationen"><a href="#spezifikationen">Spezifikationen</a></h2><table class="standard-table"><thead><tr><th scope="col">Specification</th></tr></thead><tbody><tr><td><a href="https://w3c.github.io/ServiceWorker/#serviceworkerglobalscope-interface">Service Workers <br/><small># serviceworkerglobalscope-interface</small></a></td></tr></tbody></table><h2 id="browser-kompatibilität"><a href="#browser-kompatibilität">Browser-Kompatibilität</a></h2><p>BCD tables only load in the browser<noscript> with JavaScript enabled. 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href="https://foundation.mozilla.org/">Mozilla Foundation</a>.<br/>Portions of this content are ©1998–2024 by individual mozilla.org contributors. Content available under <a href="/de/docs/MDN/Writing_guidelines/Attrib_copyright_license">a Creative Commons license</a>.</p></div></div></footer></div><script type="application/json" id="hydration">{"url":"/de/docs/Web/API/ServiceWorkerGlobalScope","doc":{"isMarkdown":true,"isTranslated":true,"isActive":true,"flaws":{},"title":"ServiceWorkerGlobalScope","mdn_url":"/de/docs/Web/API/ServiceWorkerGlobalScope","locale":"de","native":"Deutsch","browserCompat":["api.ServiceWorkerGlobalScope"],"sidebarHTML":"<ol><li class=\"section\"><a href=\"/de/docs/Web/API/Service_Worker_API\">Service Worker API</a></li><li class=\"section\"><em><a href=\"/de/docs/Web/API/ServiceWorkerGlobalScope\" aria-current=\"page\"><code>ServiceWorkerGlobalScope</code></a></em></li><li class=\"toggle\"><details open=\"\"><summary>Instanzeigenschaften</summary><ol><li><a href=\"/de/docs/Web/API/ServiceWorkerGlobalScope/clients\"><code>clients</code></a></li><li><a href=\"/de/docs/Web/API/ServiceWorkerGlobalScope/cookieStore\"><code>cookieStore</code></a></li><li><a href=\"/de/docs/Web/API/ServiceWorkerGlobalScope/registration\"><code>registration</code></a></li><li><a href=\"/de/docs/Web/API/ServiceWorkerGlobalScope/serviceWorker\"><code>serviceWorker</code></a></li></ol></details></li><li class=\"toggle\"><details open=\"\"><summary>Instanzmethoden</summary><ol><li><a href=\"/de/docs/Web/API/ServiceWorkerGlobalScope/skipWaiting\"><code>skipWaiting()</code></a></li></ol></details></li><li class=\"toggle\"><details open=\"\"><summary>Events</summary><ol><li><a href=\"/de/docs/Web/API/ServiceWorkerGlobalScope/activate_event\"><code>activate</code></a></li><li><a href=\"/de/docs/Web/API/ServiceWorkerGlobalScope/backgroundfetchabort_event\"><code>backgroundfetchabort</code></a></li><li><a href=\"/de/docs/Web/API/ServiceWorkerGlobalScope/backgroundfetchclick_event\"><code>backgroundfetchclick</code></a></li><li><a href=\"/de/docs/Web/API/ServiceWorkerGlobalScope/backgroundfetchfail_event\"><code>backgroundfetchfail</code></a></li><li><a href=\"/de/docs/Web/API/ServiceWorkerGlobalScope/backgroundfetchsuccess_event\"><code>backgroundfetchsuccess</code></a></li><li><a href=\"/de/docs/Web/API/ServiceWorkerGlobalScope/canmakepayment_event\"><code>canmakepayment</code></a></li><li><a href=\"/de/docs/Web/API/ServiceWorkerGlobalScope/contentdelete_event\"><code>contentdelete</code></a></li><li><a href=\"/de/docs/Web/API/ServiceWorkerGlobalScope/cookiechange_event\"><code>cookiechange</code></a></li><li><a href=\"/de/docs/Web/API/ServiceWorkerGlobalScope/fetch_event\"><code>fetch</code></a></li><li><a href=\"/de/docs/Web/API/ServiceWorkerGlobalScope/install_event\"><code>install</code></a></li><li><a href=\"/de/docs/Web/API/ServiceWorkerGlobalScope/message_event\"><code>message</code></a></li><li><a href=\"/de/docs/Web/API/ServiceWorkerGlobalScope/messageerror_event\"><code>messageerror</code></a></li><li><a href=\"/de/docs/Web/API/ServiceWorkerGlobalScope/notificationclick_event\"><code>notificationclick</code></a></li><li><a href=\"/de/docs/Web/API/ServiceWorkerGlobalScope/notificationclose_event\"><code>notificationclose</code></a></li><li><a href=\"/de/docs/Web/API/ServiceWorkerGlobalScope/paymentrequest_event\"><code>paymentrequest</code></a></li><li><a href=\"/de/docs/Web/API/ServiceWorkerGlobalScope/periodicsync_event\"><code>periodicsync</code></a></li><li><a href=\"/de/docs/Web/API/ServiceWorkerGlobalScope/push_event\"><code>push</code></a></li><li><a href=\"/de/docs/Web/API/ServiceWorkerGlobalScope/pushsubscriptionchange_event\"><code>pushsubscriptionchange</code></a></li><li><a href=\"/de/docs/Web/API/ServiceWorkerGlobalScope/sync_event\"><code>sync</code></a></li></ol></details></li><li class=\"toggle\"><details open=\"\"><summary>Vererbung</summary><ol><li><a href=\"/de/docs/Web/API/WorkerGlobalScope\"><code>WorkerGlobalScope</code></a></li><li><a href=\"/de/docs/Web/API/EventTarget\"><code>EventTarget</code></a></li></ol></details></li><li class=\"toggle\"><details open=\"\"><summary>Verwandte Seiten für Service Workers API</summary><ol><li><a href=\"/de/docs/Web/API/Cache\"><code>Cache</code></a></li><li><a href=\"/de/docs/Web/API/CacheStorage\"><code>CacheStorage</code></a></li><li><a href=\"/de/docs/Web/API/Client\"><code>Client</code></a></li><li><a href=\"/de/docs/Web/API/Clients\"><code>Clients</code></a></li><li><a href=\"/de/docs/Web/API/ExtendableEvent\"><code>ExtendableEvent</code></a></li><li><a href=\"/de/docs/Web/API/ExtendableMessageEvent\"><code>ExtendableMessageEvent</code></a></li><li><a href=\"/de/docs/Web/API/FetchEvent\"><code>FetchEvent</code></a></li><li><a href=\"/de/docs/Web/API/InstallEvent\"><code>InstallEvent</code></a></li><li><a href=\"/de/docs/Web/API/NavigationPreloadManager\"><code>NavigationPreloadManager</code></a></li><li><a href=\"/de/docs/Web/API/Navigator/serviceWorker\"><code>Navigator.serviceWorker</code></a></li><li><a href=\"/de/docs/Web/API/ServiceWorker\"><code>ServiceWorker</code></a></li><li><a href=\"/de/docs/Web/API/ServiceWorkerContainer\"><code>ServiceWorkerContainer</code></a></li><li><a href=\"/de/docs/Web/API/ServiceWorkerRegistration\"><code>ServiceWorkerRegistration</code></a></li><li><a href=\"/de/docs/Web/API/Window/caches\"><code>Window.caches</code></a></li><li><a href=\"/de/docs/Web/API/WindowClient\"><code>WindowClient</code></a></li><li><a href=\"/de/docs/Web/API/WorkerGlobalScope/caches\"><code>WorkerGlobalScope.caches</code></a></li><li><a href=\"/de/docs/Web/API/WorkerNavigator/serviceWorker\"><code>WorkerNavigator.serviceWorker</code></a></li></ol></details></li></ol>","sidebarMacro":"APIRef","body":[{"type":"prose","value":{"id":null,"title":null,"isH3":false,"content":"<div class=\"notecard secure\"><p><strong>Sicherer Kontext:</strong> Diese Funktion ist nur in <a href=\"/de/docs/Web/Security/Secure_Contexts\">sicheren Kontexten</a> (HTTPS) in einigen oder allen <a href=\"#browser-kompatibilität\">unterstützenden Browsern</a> verfügbar.</p></div><div class=\"notecard note\">\n <p><strong>Hinweis:</strong> Dieses Feature ist nur verfügbar in <a href=\"/de/docs/Web/API/Service_Worker_API\">Service Workers</a>.</p>\n</div>\n<p>Das <strong><code>ServiceWorkerGlobalScope</code></strong> Interface der <a href=\"/de/docs/Web/API/Service_Worker_API\">Service Worker API</a> repräsentiert den globalen Ausführungskontext eines Service Workers.</p>\n<p>Entwickler sollten beachten, dass der Zustand des ServiceWorkers nicht über den Beendigungs-/Neustartzyklus hinweg beibehalten wird. Jeder Ereignishandler sollte daher annehmen, dass er mit einem leeren, standardmäßigen globalen Zustand aufgerufen wird.</p>\n<p>Nach erfolgreicher Registrierung kann und wird ein Service Worker beendet, wenn er inaktiv ist, um Speicher und Prozessorleistung zu sparen. Ein aktiver Service Worker wird automatisch neu gestartet, um auf Ereignisse zu reagieren, wie zum Beispiel <a href=\"/de/docs/Web/API/ServiceWorkerGlobalScope/fetch_event\"><code>fetch</code></a> oder <a href=\"/de/docs/Web/API/ServiceWorkerGlobalScope/message_event\"><code>message</code></a>.</p>\n<p>Darüber hinaus sind synchrone Anfragen innerhalb eines Service Workers nicht erlaubt — es können nur asynchrone Anfragen verwendet werden, wie sie zum Beispiel über die Methode <a href=\"/de/docs/Web/API/WorkerGlobalScope/fetch\"><code>fetch()</code></a> initiiert werden.</p>\n<p>Dieses Interface erbt vom <a href=\"/de/docs/Web/API/WorkerGlobalScope\"><code>WorkerGlobalScope</code></a> Interface und dessen Elternteil <a href=\"/de/docs/Web/API/EventTarget\"><code>EventTarget</code></a>.</p><svg viewBox=\"-1 -1 650 42\" preserveAspectRatio=\"xMinYMin meet\">\n <a style=\"text-decoration: none;\" href=\"/de/docs/Web/API/EventTarget\">\n <rect x=\"0\" y=\"0\" width=\"88\" height=\"25\" fill=\"#fff\" stroke=\"#D4DDE4\" stroke-width=\"2px\"></rect>\n <text x=\"44\" y=\"16\" font-size=\"10px\" fill=\"#4D4E53\" text-anchor=\"middle\">\n EventTarget\n </text>\n </a>\n <line x1=\"88\" y1=\"14\" x2=\"118\" y2=\"14\" stroke=\"#D4DDE4\"></line>\n <polyline points=\"88,14 98,9 98,19 88,14\" stroke=\"#D4DDE4\" fill=\"#fff\"></polyline>\n <a style=\"text-decoration: none;\" href=\"/de/docs/Web/API/WorkerGlobalScope\">\n <rect x=\"118\" y=\"0\" width=\"136\" height=\"25\" fill=\"#fff\" stroke=\"#D4DDE4\" stroke-width=\"2px\"></rect>\n <text x=\"186\" y=\"16\" font-size=\"10px\" fill=\"#4D4E53\" text-anchor=\"middle\">\n WorkerGlobalScope\n </text>\n </a>\n <line x1=\"254\" y1=\"14\" x2=\"284\" y2=\"14\" stroke=\"#D4DDE4\"></line>\n <polyline points=\"254,14 264,9 264,19 254,14\" stroke=\"#D4DDE4\" fill=\"#fff\"></polyline>\n <a style=\"text-decoration: none;\" href=\"/de/docs/Web/API/ServiceWorkerGlobalScope\" aria-current=\"page\">\n <rect x=\"284\" y=\"0\" width=\"192\" height=\"25\" fill=\"#F4F7F8\" stroke=\"#D4DDE4\" stroke-width=\"2px\"></rect>\n <text x=\"380\" y=\"16\" font-size=\"10px\" fill=\"#4D4E53\" text-anchor=\"middle\">\n ServiceWorkerGlobalScope\n </text>\n </a></svg>"}},{"type":"prose","value":{"id":"instanz-eigenschaften","title":"Instanz-Eigenschaften","isH3":false,"content":"<p><em>Dieses Interface erbt Eigenschaften vom <a href=\"/de/docs/Web/API/WorkerGlobalScope\"><code>WorkerGlobalScope</code></a> Interface und dessen Elternteil <a href=\"/de/docs/Web/API/EventTarget\"><code>EventTarget</code></a>.</em></p>\n<dl>\n <dt id=\"serviceworkerglobalscope.clients\"><a href=\"/de/docs/Web/API/ServiceWorkerGlobalScope/clients\"><code>ServiceWorkerGlobalScope.clients</code></a> <span class=\"badge inline readonly\" title=\"Dieser Wert kann nicht geändert werden.\">Nur lesbar </span></dt>\n <dd>\n <p>Beinhaltet das <a href=\"/de/docs/Web/API/Clients\"><code>Clients</code></a> Objekt, das mit dem Service Worker verbunden ist.</p>\n </dd>\n <dt id=\"serviceworkerglobalscope.cookiestore\"><a href=\"/de/docs/Web/API/ServiceWorkerGlobalScope/cookieStore\"><code>ServiceWorkerGlobalScope.cookieStore</code></a> <span class=\"badge inline readonly\" title=\"Dieser Wert kann nicht geändert werden.\">Nur lesbar </span> <abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></dt>\n <dd>\n <p>Gibt eine Referenz auf das <a href=\"/de/docs/Web/API/CookieStore\"><code>CookieStore</code></a> Objekt zurück, das mit dem Service Worker verbunden ist.</p>\n </dd>\n <dt id=\"serviceworkerglobalscope.registration\"><a href=\"/de/docs/Web/API/ServiceWorkerGlobalScope/registration\"><code>ServiceWorkerGlobalScope.registration</code></a> <span class=\"badge inline readonly\" title=\"Dieser Wert kann nicht geändert werden.\">Nur lesbar </span></dt>\n <dd>\n <p>Beinhaltet das <a href=\"/de/docs/Web/API/ServiceWorkerRegistration\"><code>ServiceWorkerRegistration</code></a> Objekt, das die Registrierung des Service Workers repräsentiert.</p>\n </dd>\n <dt id=\"serviceworkerglobalscope.serviceworker\"><a href=\"/de/docs/Web/API/ServiceWorkerGlobalScope/serviceWorker\"><code>ServiceWorkerGlobalScope.serviceWorker</code></a> <span class=\"badge inline readonly\" title=\"Dieser Wert kann nicht geändert werden.\">Nur lesbar </span></dt>\n <dd>\n <p>Beinhaltet das <a href=\"/de/docs/Web/API/ServiceWorker\"><code>ServiceWorker</code></a> Objekt, das den Service Worker repräsentiert.</p>\n </dd>\n</dl>"}},{"type":"prose","value":{"id":"instanz-methoden","title":"Instanz-Methoden","isH3":false,"content":"<p><em>Dieses Interface erbt Methoden vom <a href=\"/de/docs/Web/API/WorkerGlobalScope\"><code>WorkerGlobalScope</code></a> Interface und dessen Elternteil <a href=\"/de/docs/Web/API/EventTarget\"><code>EventTarget</code></a>.</em></p>\n<dl>\n <dt id=\"serviceworkerglobalscope.skipwaiting\"><a href=\"/de/docs/Web/API/ServiceWorkerGlobalScope/skipWaiting\"><code>ServiceWorkerGlobalScope.skipWaiting()</code></a></dt>\n <dd>\n <p>Erlaubt es der aktuellen Registrierung des Service Workers, vom Wartezustand in den aktiven Zustand zu wechseln, während Service Worker Clients es verwenden.</p>\n </dd>\n</dl>"}},{"type":"prose","value":{"id":"ereignisse","title":"Ereignisse","isH3":false,"content":"<p>Hören Sie auf dieses Ereignis mit <a href=\"/de/docs/Web/API/EventTarget/addEventListener\"><code>addEventListener()</code></a> oder indem Sie einen Ereignis-Listener auf die <code>oneventname</code>-Eigenschaft dieses Interfaces zuweisen.</p>\n<dl>\n <dt id=\"activate\"><a href=\"/de/docs/Web/API/ServiceWorkerGlobalScope/activate_event\"><code>activate</code></a></dt>\n <dd>\n <p>Tritt auf, wenn eine <a href=\"/de/docs/Web/API/ServiceWorkerRegistration\"><code>ServiceWorkerRegistration</code></a> einen neuen <a href=\"/de/docs/Web/API/ServiceWorkerRegistration/active\"><code>ServiceWorkerRegistration.active</code></a> Worker erwirbt.</p>\n </dd>\n <dt id=\"backgroundfetchabort\"><a href=\"/de/docs/Web/API/ServiceWorkerGlobalScope/backgroundfetchabort_event\"><code>backgroundfetchabort</code></a> <abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></dt>\n <dd>\n <p>Wird ausgelöst, wenn eine Operation des <a href=\"/de/docs/Web/API/Background_Fetch_API\">Background Fetch</a> vom Benutzer oder der App abgebrochen wurde.</p>\n </dd>\n <dt id=\"backgroundfetchclick\"><a href=\"/de/docs/Web/API/ServiceWorkerGlobalScope/backgroundfetchclick_event\"><code>backgroundfetchclick</code></a> <abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></dt>\n <dd>\n <p>Wird ausgelöst, wenn der Benutzer auf die Benutzeroberfläche für eine <a href=\"/de/docs/Web/API/Background_Fetch_API\">Background Fetch</a> Operation geklickt hat.</p>\n </dd>\n <dt id=\"backgroundfetchfail\"><a href=\"/de/docs/Web/API/ServiceWorkerGlobalScope/backgroundfetchfail_event\"><code>backgroundfetchfail</code></a> <abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></dt>\n <dd>\n <p>Wird ausgelöst, wenn mindestens eine der Anfragen in einer <a href=\"/de/docs/Web/API/Background_Fetch_API\">Background Fetch</a> Operation fehlgeschlagen ist.</p>\n </dd>\n <dt id=\"backgroundfetchsuccess\"><a href=\"/de/docs/Web/API/ServiceWorkerGlobalScope/backgroundfetchsuccess_event\"><code>backgroundfetchsuccess</code></a> <abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></dt>\n <dd>\n <p>Wird ausgelöst, wenn alle Anfragen in einer <a href=\"/de/docs/Web/API/Background_Fetch_API\">Background Fetch</a> Operation erfolgreich waren.</p>\n </dd>\n <dt id=\"canmakepayment\"><a href=\"/de/docs/Web/API/ServiceWorkerGlobalScope/canmakepayment_event\"><code>canmakepayment</code></a> <abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></dt>\n <dd>\n <p>Wird auf dem Service Worker einer Zahlungs-App ausgelöst, um zu überprüfen, ob sie bereit ist, eine Zahlung zu bearbeiten. Speziell wird es ausgelöst, wenn die Händlerwebsite den <a href=\"/de/docs/Web/API/PaymentRequest/PaymentRequest\"><code>PaymentRequest()</code></a> Konstruktor aufruft.</p>\n </dd>\n <dt id=\"contentdelete\"><a href=\"/de/docs/Web/API/ServiceWorkerGlobalScope/contentdelete_event\"><code>contentdelete</code></a> <abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></dt>\n <dd>\n <p>Tritt auf, wenn ein Element aus dem <a href=\"/de/docs/Web/API/ContentIndex\"><code>ContentIndex</code></a> entfernt wird.</p>\n </dd>\n <dt id=\"cookiechange\"><a href=\"/de/docs/Web/API/ServiceWorkerGlobalScope/cookiechange_event\"><code>cookiechange</code></a> <abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></dt>\n <dd>\n <p>Wird ausgelöst, wenn eine Cookie-Änderung aufgetreten ist, die mit der Cookie-Änderungs-Abonnementliste des Service Workers übereinstimmt.</p>\n </dd>\n <dt id=\"fetch\"><a href=\"/de/docs/Web/API/ServiceWorkerGlobalScope/fetch_event\"><code>fetch</code></a></dt>\n <dd>\n <p>Tritt auf, wenn ein <a href=\"/de/docs/Web/API/WorkerGlobalScope/fetch\"><code>fetch()</code></a> aufgerufen wird.</p>\n </dd>\n <dt id=\"install\"><a href=\"/de/docs/Web/API/ServiceWorkerGlobalScope/install_event\"><code>install</code></a></dt>\n <dd>\n <p>Tritt auf, wenn eine <a href=\"/de/docs/Web/API/ServiceWorkerRegistration\"><code>ServiceWorkerRegistration</code></a> einen neuen <a href=\"/de/docs/Web/API/ServiceWorkerRegistration/installing\"><code>ServiceWorkerRegistration.installing</code></a> Worker erwirbt.</p>\n </dd>\n <dt id=\"message\"><a href=\"/de/docs/Web/API/ServiceWorkerGlobalScope/message_event\"><code>message</code></a></dt>\n <dd>\n <p>Tritt auf, wenn eingehende Nachrichten im Empfang festgestellt werden. Kontrollierte Seiten können die Methode <a href=\"/de/docs/Web/API/MessagePort/postMessage\"><code>MessagePort.postMessage()</code></a> verwenden, um Nachrichten an Service Workers zu senden.</p>\n </dd>\n <dt id=\"messageerror\"><a href=\"/de/docs/Web/API/ServiceWorkerGlobalScope/messageerror_event\"><code>messageerror</code></a></dt>\n <dd>\n <p>Tritt auf, wenn eingehende Nachrichten nicht deserialisiert werden können.</p>\n </dd>\n <dt id=\"notificationclick\"><a href=\"/de/docs/Web/API/ServiceWorkerGlobalScope/notificationclick_event\"><code>notificationclick</code></a></dt>\n <dd>\n <p>Tritt auf, wenn ein Benutzer auf eine angezeigte Benachrichtigung klickt.</p>\n </dd>\n <dt id=\"notificationclose\"><a href=\"/de/docs/Web/API/ServiceWorkerGlobalScope/notificationclose_event\"><code>notificationclose</code></a></dt>\n <dd>\n <p>Tritt auf, wenn ein Benutzer eine angezeigte Benachrichtigung schließt.</p>\n </dd>\n <dt id=\"paymentrequest\"><a href=\"/de/docs/Web/API/ServiceWorkerGlobalScope/paymentrequest_event\"><code>paymentrequest</code></a> <abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></dt>\n <dd>\n <p>Wird in einer Zahlungs-App ausgelöst, wenn ein Zahlungsablauf auf der Händlerwebsite über die Methode <a href=\"/de/docs/Web/API/PaymentRequest/show\"><code>PaymentRequest.show()</code></a> eingeleitet wurde.</p>\n </dd>\n <dt id=\"sync\"><a href=\"/de/docs/Web/API/ServiceWorkerGlobalScope/sync_event\"><code>sync</code></a></dt>\n <dd>\n <p>Wird ausgelöst, wenn ein Aufruf an <a href=\"/de/docs/Web/API/SyncManager/register\"><code>SyncManager.register</code></a> von einer Service Worker Client-Seite gemacht wird. Der Versuch, zu synchronisieren, wird entweder sofort unternommen, wenn das Netzwerk verfügbar ist, oder sobald das Netzwerk verfügbar wird.</p>\n </dd>\n <dt id=\"periodicsync\"><a href=\"/de/docs/Web/API/ServiceWorkerGlobalScope/periodicsync_event\"><code>periodicsync</code></a> <abbr class=\"icon icon-experimental\" title=\"Experimentell. Erwarten Sie, dass sich das Verhalten in Zukunft ändert.\">\n <span class=\"visually-hidden\">Experimentell</span>\n</abbr></dt>\n <dd>\n <p>Tritt bei periodischen Intervallen auf, die beim Registrieren eines <a href=\"/de/docs/Web/API/PeriodicSyncManager\"><code>PeriodicSyncManager</code></a> festgelegt wurden.</p>\n </dd>\n <dt id=\"push\"><a href=\"/de/docs/Web/API/ServiceWorkerGlobalScope/push_event\"><code>push</code></a></dt>\n <dd>\n <p>Tritt auf, wenn eine Server-Push-Benachrichtigung empfangen wird.</p>\n </dd>\n <dt id=\"pushsubscriptionchange\"><a href=\"/de/docs/Web/API/ServiceWorkerGlobalScope/pushsubscriptionchange_event\"><code>pushsubscriptionchange</code></a></dt>\n <dd>\n <p>Tritt auf, wenn ein Push-Abonnement ungültig geworden ist oder kurz davor steht ungültig zu werden (z.B. wenn ein Push-Dienst eine Ablaufzeit setzt).</p>\n </dd>\n</dl>"}},{"type":"prose","value":{"id":"beispiele","title":"Beispiele","isH3":false,"content":"<p>Dieses Code-Snippet stammt aus dem <a href=\"https://github.com/GoogleChrome/samples/blob/gh-pages/service-worker/prefetch/service-worker.js\" class=\"external\" target=\"_blank\">Service Worker Prefetch-Beispiel</a> (siehe <a href=\"https://googlechrome.github.io/samples/service-worker/prefetch/\" class=\"external\" target=\"_blank\">Prefetch-Beispiel live</a>.) Der <a href=\"/de/docs/Web/API/ServiceWorkerGlobalScope/fetch_event\"><code>onfetch</code></a> Ereignishandler hört auf das <code>fetch</code> Ereignis. Bei Auslösung gibt der Code ein Versprechen zurück, das auf die erste passende Anfrage im <a href=\"/de/docs/Web/API/Cache\"><code>Cache</code></a> Objekt auflöst. Wenn keine Übereinstimmung gefunden wird, holt der Code eine Antwort aus dem Netzwerk.</p>\n<p>Der Code behandelt auch Ausnahmen, die von der <a href=\"/de/docs/Web/API/WorkerGlobalScope/fetch\"><code>fetch()</code></a> Operation ausgelöst werden. Beachten Sie, dass eine HTTP-Fehlerantwort (z.B. 404) keine Ausnahme auslöst. Sie wird ein normales Antwortobjekt zurückgeben, das den entsprechenden Fehlercode gesetzt hat.</p>\n<div class=\"code-example\"><div class=\"example-header\"><span class=\"language-name\">js</span></div><pre class=\"brush: js notranslate\"><code>self.addEventListener(\"fetch\", (event) => {\n console.log(\"Handling fetch event for\", event.request.url);\n\n event.respondWith(\n caches.match(event.request).then((response) => {\n if (response) {\n console.log(\"Found response in cache:\", response);\n\n return response;\n }\n console.log(\"No response found in cache. About to fetch from network…\");\n\n return fetch(event.request).then(\n (response) => {\n console.log(\"Response from network is:\", response);\n\n return response;\n },\n (error) => {\n console.error(\"Fetching failed:\", error);\n\n throw error;\n },\n );\n }),\n );\n});\n</code></pre></div>"}},{"type":"specifications","value":{"title":"Spezifikationen","id":"spezifikationen","isH3":false,"specifications":[{"bcdSpecificationURL":"https://w3c.github.io/ServiceWorker/#serviceworkerglobalscope-interface","title":"Service Workers"}],"query":"api.ServiceWorkerGlobalScope"}},{"type":"browser_compatibility","value":{"title":"Browser-Kompatibilität","id":"browser-kompatibilität","isH3":false,"query":"api.ServiceWorkerGlobalScope"}},{"type":"prose","value":{"id":"siehe_auch","title":"Siehe auch","isH3":false,"content":"<ul>\n <li><a href=\"/de/docs/Web/API/Service_Worker_API/Using_Service_Workers\">Verwendung von Service Workers</a></li>\n <li><a href=\"https://github.com/mdn/dom-examples/tree/main/service-worker/simple-service-worker\" class=\"external\" target=\"_blank\">Service Workers grundlegendes Code-Beispiel</a></li>\n</ul>"}}],"toc":[{"text":"Instanz-Eigenschaften","id":"instanz-eigenschaften"},{"text":"Instanz-Methoden","id":"instanz-methoden"},{"text":"Ereignisse","id":"ereignisse"},{"text":"Beispiele","id":"beispiele"},{"text":"Spezifikationen","id":"spezifikationen"},{"text":"Browser-Kompatibilität","id":"browser-kompatibilität"},{"text":"Siehe auch","id":"siehe_auch"}],"summary":"Das ServiceWorkerGlobalScope Interface der Service Worker API repräsentiert den globalen Ausführungskontext eines Service Workers.","popularity":0,"modified":null,"other_translations":[{"locale":"en-US","title":"ServiceWorkerGlobalScope","native":"English (US)"},{"locale":"ja","title":"ServiceWorkerGlobalScope","native":"日本語"},{"locale":"ko","title":"ServiceWorkerGlobalScope","native":"한국어"},{"locale":"zh-CN","title":"ServiceWorkerGlobalScope","native":"中文 (简体)"}],"pageType":"unknown","source":{"folder":"de/web/api/serviceworkerglobalscope","github_url":"https://github.com/mdn/translated-content/blob/main/files/de/web/api/serviceworkerglobalscope/index.md","last_commit_url":"https://github.com/mdn/translated-content/commit/null","filename":"index.md"},"short_title":"ServiceWorkerGlobalScope","parents":[{"uri":"/de/docs/Web","title":"Web-Technologien für Entwickler"},{"uri":"/de/docs/Web/API","title":"Web APIs"},{"uri":"/de/docs/Web/API/ServiceWorkerGlobalScope","title":"ServiceWorkerGlobalScope"}],"pageTitle":"ServiceWorkerGlobalScope - Web APIs | MDN","noIndexing":false}}</script></body></html>