1 files changed, 49 insertions, 0 deletions
diff --git a/remote/test/puppeteer/examples/detect-sniff.js b/remote/test/puppeteer/examples/detect-sniff.js
new file mode 100644
index 0000000000..2900236fb8
--- /dev/null
+++ b/remote/test/puppeteer/examples/detect-sniff.js
@@ -0,0 +1,49 @@
+/**
+ * Copyright 2017 Google Inc., PhantomJS Authors All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+'use strict';
+
+const puppeteer = require('puppeteer');
+
+function sniffDetector() {
+  const userAgent = window.navigator.userAgent;
+  const platform = window.navigator.platform;
+
+  window.navigator.__defineGetter__('userAgent', function () {
+    window.navigator.sniffed = true;
+    return userAgent;
+  });
+
+  window.navigator.__defineGetter__('platform', function () {
+    window.navigator.sniffed = true;
+    return platform;
+  });
+}
+
+(async () => {
+  const browser = await puppeteer.launch();
+  const page = await browser.newPage();
+  await page.evaluateOnNewDocument(sniffDetector);
+  await page.goto('https://www.google.com', {waitUntil: 'networkidle2'});
+  console.log(
+    'Sniffed: ' +
+      (await page.evaluate(() => {
+        return !!navigator.sniffed;
+      }))
+  );
+
+  await browser.close();
+})();