Error for url with search parameters on remote server

[Kvit]

This problem is a bit tricky to replicate, steps:

1. deploy auth0 app on remote server (e.g. shinyapps.io) but don't start it yet
2. Try to open the app with search query params: user.shinyapps.io/app/?q=123 you should see an error in the browser

ERROR: An error has occurred. Check your logs or contact the app author for clarification.

3. open the same app without query (user.shinyapps.io/app/)
4. open the same app again with the query you should see no error

If I look at the logs on shinyapps.io I can see some error like this
Warning: Error in substr: object 'redirect_uri' not found

[jtrecenti]

Hi! thanks for the issue. Bookmarking in shiny apps is being a big challenge to this. Currently we can assume that bookmarking only works with server storage.

Maybe in later versions we'll have this feature. See #60