Proxy requests to api to avoid cors

Author: cgalbiati

_redirects

@@ -0,0 +1,3 @@
+# /_redirects
+
+/api/*  https://takebackday.infoloom.com/:splat

src/gateways/locations.js

@@ -1,6 +1,7 @@
 import mockData from '../mockData';
 
-const jsonEndpoint = 'https://takebackday.infoloom.com/media/output.json';
+// Actual host url is set in redirects file to avoid CORS
+const jsonEndpoint = '/api/media/output.json';
 
 export const fetchLocations = () => (
  fetch(jsonEndpoint)