Describe the bug:
If people open the phonebook in IE they will don't see anything.

Console:

To Reproduce:
Open demo-phonebook.me.

Expected behavior:
There should be an info that IE is not supported.
The dialog exists but don't show.

--> There is an option in IE where you can easy open the site in edge (
STRG+Shift+E). A button to open the site in another browser would be cool.

Additional context:
IE 11.864.17763.0