Fetch plex server url and token to use on all requests

server/index.js

@@ -45,8 +45,11 @@ export default () => {
 
     if (process.env.NODE_ENV === 'production') {
       server.use(express.static('client/build'));
+      const path = require('path');
       server.get('*', (req, res) => {
-        res.sendFile('../client/build/index.html');
+        res.sendFile(
+          path.resolve(__dirname, '..', 'client', 'build', 'index.html'),
+        );
       });
     }