Supporting "Do Not Track" for Gogle Analytics and Sentry error reporting

src/setup/analytics.js

@@ -1,10 +1,12 @@
 import ReactGA from 'react-ga';
 
 const setupAnalytics = () => {
-  ReactGA.initialize(process.env.GA_PROPERTY, {
-    debug: (process.env.NODE_ENV !== 'production')
-  });
-  ReactGA.pageview(document.location.pathname);
+  if (navigator.doNotTrack !== '1' && window.doNotTrack !== '1') {
+    ReactGA.initialize(process.env.GA_PROPERTY, {
+      debug: (process.env.NODE_ENV !== 'production')
+    });
+    ReactGA.pageview(document.location.pathname);
+  }
 };
 
 export default setupAnalytics;

src/setup/analytics.test.js

@@ -34,4 +34,24 @@ describe('setupAnalytics', () => {
     setupAnalytics();
     expect(ReactGA.pageview).toHaveBeenCalled();
   });
+
+  describe('when "Do Not Track" is set', () => {
+    beforeEach(() => {
+      navigator.doNotTrack = '1';
+    });
+
+    afterEach(() => {
+      navigator.doNotTrack = undefined;
+    });
+
+    it('does not initialize', () => {
+      setupAnalytics();
+      expect(ReactGA.initialize).not.toHaveBeenCalled();
+    });
+
+    it('does not trigger a pageview', () => {
+      setupAnalytics();
+      expect(ReactGA.pageview).not.toHaveBeenCalled();
+    });
+  });
 });

src/setup/raven.js

@@ -1,12 +1,14 @@
 import Raven from 'raven-js';
 
 const setupRaven = () => {
-  Raven.config(process.env.SENTRY_KEY, {
-    whitelistUrls: [/https:\/\/(.*\.)?regexper\.com/],
-    environment: process.env.DEPLOY_ENV,
-    debug: (process.env.NODE_ENV !== 'production'),
-    release: process.env.BUILD_ID
-  });
+  if (navigator.doNotTrack !== '1' && window.doNotTrack !== '1') {
+    Raven.config(process.env.SENTRY_KEY, {
+      whitelistUrls: [/https:\/\/(.*\.)?regexper\.com/],
+      environment: process.env.DEPLOY_ENV,
+      debug: (process.env.NODE_ENV !== 'production'),
+      release: process.env.BUILD_ID
+    });
+  }
 };
 
 export default setupRaven;

src/setup/raven.test.js

@@ -45,4 +45,19 @@ describe('setupRaven', () => {
       release: 'test ID'
     }));
   });
+
+  describe('when "Do Not Track" is set', () => {
+    beforeEach(() => {
+      navigator.doNotTrack = '1';
+    });
+
+    afterEach(() => {
+      navigator.doNotTrack = undefined;
+    });
+
+    it('does not intialize', () => {
+      setupRaven();
+      expect(Raven.config).not.toHaveBeenCalled();
+    });
+  });
 });