Step 10 Error: User does not have permission to access 'image'?

I'm following the Friendly Chat codelab project.

All setup was straight from the instructions, and current github repo.

On step 10, after uploading an image, I get the error:
```node
Therewas an error uploading a file to Cloud Storage: FirebaseError: Firebase Storage: User does not have permission to access 'filepath.png'. (storage/unauthorized)
```

No idea what to do here, but the chat only displays the loading spinner and never actually replaces it with the generated img url or subsequent image.