garbage #_=_ in url after authenticated w Devise/Omniauth

[Erwin]

very strange ...  after being authenticated w FB/Google , the user is signe din and redirected to root_url 

In console :

>> Started GET "/users/auth/facebook?display=page" 

>> (facebook) Request phase initiated.

>> Started GET "/users/auth/facebook/callback?code=AQCHRMjDO......

>> (facebook) Callback phase initiated.

>>   Processing by Users::OmniauthCallbacksController#facebook as HTML

>>          Parameters: {"code"=>"AQCHRMjDOp2VW56_......

>>   User Load (0.6ms)  SELECT `users`.* FROM `users` 

>>    ...

>>        UPDATE `users` SET `last_sign_in_at` 

>>       COMMIT

 >>Redirected to http://lvh.me:3000/

>> Completed 302 Found in 3358ms (ActiveRecord: 3.2ms)

>> Started GET "/" for 127.0.0.1 at 2012-11-14 12:08:51 +0100

>> Processing by WelcomeController#home as HTML    # no action in welcome_controller#home , only display of a statuc home page view

Everything is fine BUT the url displayed in the browser is weird :   some garbage    http://lvh.me:3000/#_=_

any clue about where I should look into ?

thnaks

[Erwin]

found a clue , but don't know yet how to get rid of it

The callback url from FB contains these characters at the end of the code ...  #/_=_

seems to be append to the redirect url  ( root_url in my case)

    http://lvh.me:3000/users/auth/facebook/callback?code=AQAPAicWohKyaTYEDqZIfDGgho9fpEeu-r7749zRPfdF7rd7L5HrHUxU6gqmjO7lBQPgkp3UE-5qKJg9zYlGUxA-0rgJphBlpYwXyao6kGYzyztFvSZJ_muF__Py_QjSufIzLYcZsaEzSZ2TN5D9whczeXBC_8zbjEZNhHnJki4QgV9B862-lihYnWe5UWvKfNTdPGC0E_EzBAfegOXSdoKl#_=_

[Erwin]

[SOLVED]  it's a FB addition ....

[SOLVED] from FB ... Change in Session Redirect Behavior

This week, we started adding a fragment #_=_ to the redirect_uri when this field is left blank. Please ensure that your app can handle this behavior.

added to my application.js

if (window.location.href.indexOf('#_=_') > 0) { 

window.location = window.location.href.replace(/#.*/, '');