Fix infinite redirect on www subdomain

Add first route tests

server/routes.test.js

@@ -0,0 +1,27 @@
+/* eslint-disable flowtype/require-valid-file-annotation */
+import TestServer from 'fetch-test-server';
+import app from '.';
+import { flushdb } from './test/support';
+
+const server = new TestServer(app.callback());
+
+beforeEach(flushdb);
+afterAll(server.close);
+
+describe('#index', async () => {
+  it('should render homepage', async () => {
+    const res = await server.get('/');
+    const html = await res.text();
+    expect(res.status).toEqual(200);
+    expect(html.includes('Your team’s knowledge base')).toEqual(true);
+  });
+
+  it('should render app if there is an accessToken', async () => {
+    const res = await server.get('/', {
+      headers: { authorization: 'Bearer thisIsAnAccessToken' },
+    });
+    const html = await res.text();
+    expect(res.status).toEqual(200);
+    expect(html.includes('id="root"')).toEqual(true);
+  });
+});