onsenui with Cordova - start application on specific screen

Question

I'm running a React.js/Cordova/OnsenUI application that is intended to be used both in the browser and on mobile devices. I'd like the user to be able to scan a QR code, then jump to a screen in my application.

This is what the application looks like right now:

import React from 'react';

import {
  Navigator
} from 'react-onsenui';

import MainPage from './MainPage';
import Vendor from './Vendor';    

const renderPage = (route, navigator) => (
  <route.component key={route.key} navigator={navigator} />
);

const App = () => (
  <Navigator
    renderPage={renderPage}
    initialRoute={{component: MainPage, key: 'MAIN_PAGE'}}
  />
);

export default App;

When I start up, depending on the URL, I might want to start with a Vendor component or a MainPage component.

I figured that the easiest thing to do would be to dynamically create the initialRoute object based on the QR code that was scanned. Given that I might be on an iOS device, how do I know what the URL was that was scanned? Is there a different way that I should be jumping to a specific screen when I start the app?