Django allauth & facebook: Given URL is not allowed by the Application configuration

I successfully run the example from The missing django-allauth tutorial to login with facebook, but now I have this error when I try to install django-allauth from scratch: ``` Given URL is not allowed by the Application configuration ``` In facebook, my site URL is set to `http://127.0.0.1:8000/`, this works for the example but not my app. Where can the error come from? I also don't understand the "sites" field in Django administration: Home › Socialaccount › Social apps › AppName. It is set to example.com by default, I don't know what to set here, although it works fine with example.com for the example... Just for info, here is the example's main urls.py ``` from django.conf.urls import patterns, include, url from django.contrib import admin admin.autodiscover() urlpatterns = patterns( '', # prevent the extra are-you-sure-you-want-to-logout step on logout (r'^accounts/logout/$', 'django.contrib.auth.views.logout', {'next_page': '/'}), url(r'^', include('larb.urls')), url(r'^accounts/', include('allauth.urls')), url(r'^admin/', include(admin.site.urls)), ) ``` and urls.py for larb: ``` from django.conf.urls import patterns, url from larb import views urlpatterns = patterns('', url(r'^$', views.index, name='index') ) ``` and my unique main urls.py ``` from django.conf.urls import patterns, include, url from django.contrib import admin from django.views.generic.base import TemplateView from django.conf.urls.static import static from django.contrib.staticfiles.urls import staticfiles_urlpatterns from Romanesco import settings admin.autodiscover() urlpatterns = patterns('', url(r'^$', 'draw.views.index'), url(r'^accounts/', include('allauth.urls')), url(r'^admin/', include(admin.site.urls)), ) ``` I have noticed a difference, in the example the facebook button links to `href="/accounts/facebook/login/"` ; whereas in the default login page (when it fails) it's `href="javascript:allauth.facebook.login('', 'authenticate', 'login')"`. If I go to `http://127.0.0.1:8000/accounts/facebook/login/` manually it works!