Why does Devise / Omniauth add garbage to the URL?

Question

After logging into facebook, I am redirected to /#_=_ , where the main page is displayed.

This kind of garbage also appeared in other URLs, for example, when registration failed and redirected to /users/sign_in#_=_

Why is this happening, and how can I fix it?

Answer 1

If you really don't want this, some simple javascript and you are good to go:

 if (window.location.hash == "#_=_") { window.location.hash = ""; } 

Answer 2

It is common to enter facebook. Do not worry.