Aggelos Makrinos

You're the man!

When I just `npm start` everything works correctly. But when I `npm run build` and `serve -s build` nothing works I always get > Cannot read property 'something' of undefined...

I solved the CORS issue by adding ``` const cors = require('cors'); app.use(cors()); app.options('*', cors()) ``` to `/functions/index.js` and also doing [this](https://cloud.google.com/functions/docs/securing/managing-access-iam#allowing_unauthenticated_function_invocation) because I deployed the functions on firebase.

> Just chiming in with another solution as I stumbled upon this issue when searching for the same thing. > > What I did was: > > * Forked [firebaseui](https://github.com/firebase/firebaseui-web)...

Ok here's how I did it (I use el for Greek in this case). 1. [Forked firebaseui-web](https://github.com/AggelosM/firebaseui-web) and [built](https://github.com/firebase/firebaseui-web#building-firebaseui) for the Greek language with `npm run build build-js-el && npm...

I also found https://github.com/greg-schrammel/react-firebaseui-localized but that was after I figure it out by myself so didn't bother looking at it.

I'm getting a similar error when I try to play on qtsampleplayer an .mpd file (which works on dash.js) created with shaka-packager. [mov,mp4,m4a,3gp,3g2,mj2 @ 0x2ba77e0] Could not find codec parameters...