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+---
+title: WindowOrWorkerGlobalScope.origin
+slug: Web/API/WindowOrWorkerGlobalScope/origin
+tags:
+  - global scope
+  - origin
+  - serialized
+translation_of: Web/API/WindowOrWorkerGlobalScope/origin
+---
+<p>{{APIRef()}}{{SeeCompatTable}}{{domxref("WindowOrWorkerGlobalScope")}} 接口的 <code><strong>origin</strong></code> 只读属性返回全局范围的 <strong>origin</strong>, 序列化为一个字符串。</p>
+
+<h2 id="Syntax">Syntax</h2>
+
+<pre class="syntaxbox">let <em>myOrigin</em> = self.origin; // or just origin
+</pre>
+
+<h3 id="Value">Value</h3>
+
+<p>A {{domxref("USVString")}}.</p>
+
+<h2 id="Examples">Examples</h2>
+
+<p>Executed from inside a worker script, the following snippet will log the worker's global scope's origin to the console each time it receives a message</p>
+
+<pre class="brush: js">onmessage = function() {
+  console.log(self.origin);
+};</pre>
+
+<p>If the origin is not a scheme/host/port tuple (say you are trying to run it locally, i.e. via <code>file://</code> URL), <code>origin</code> will return the string <code>"null"</code>.</p>
+
+<h2 id="Specifications">Specifications</h2>
+
+<table class="standard-table">
+ <tbody>
+  <tr>
+   <th scope="col">Specification</th>
+   <th scope="col">Status</th>
+   <th scope="col">Comment</th>
+  </tr>
+  <tr>
+   <td>{{SpecName('HTML WHATWG', 'webappapis.html#dom-origin', 'WindowOrWorkerGlobalScope.origin')}}</td>
+   <td>{{Spec2('HTML WHATWG')}}</td>
+   <td>Initial definition.</td>
+  </tr>
+ </tbody>
+</table>
+
+<h2 id="Browser_compatibility">Browser compatibility</h2>
+
+<p>{{CompatibilityTable}}</p>
+
+<div id="compat-desktop">
+<table class="compat-table">
+ <tbody>
+  <tr>
+   <th>Feature</th>
+   <th>Chrome</th>
+   <th>Firefox (Gecko)</th>
+   <th>Internet Explorer</th>
+   <th>Opera</th>
+   <th>Safari</th>
+  </tr>
+  <tr>
+   <td>Basic support</td>
+   <td>{{CompatChrome(59)}}</td>
+   <td>{{CompatGeckoDesktop(54)}}</td>
+   <td>{{CompatNo}}</td>
+   <td>{{CompatNo}}</td>
+   <td>{{CompatNo}}</td>
+  </tr>
+ </tbody>
+</table>
+</div>
+
+<div id="compat-mobile">
+<table class="compat-table">
+ <tbody>
+  <tr>
+   <th>Feature</th>
+   <th>Android</th>
+   <th>Chrome for Android</th>
+   <th>Firefox Mobile (Gecko)</th>
+   <th>IE Mobile</th>
+   <th>Opera Mobile</th>
+   <th>Safari Mobile</th>
+  </tr>
+  <tr>
+   <td>Basic support</td>
+   <td>{{CompatChrome(59)}}</td>
+   <td>{{CompatChrome(59)}}</td>
+   <td>{{CompatGeckoMobile(54)}} </td>
+   <td>{{CompatNo}}</td>
+   <td>{{CompatNo}}</td>
+   <td>{{CompatNo}}</td>
+  </tr>
+ </tbody>
+</table>
+</div>