diff --git a/src/.gitignore b/src/.gitignore
index 70b16bf55e..524219a0c2 100644
--- a/src/.gitignore
+++ b/src/.gitignore
@@ -8,6 +8,9 @@
 /build/
 /htmlcov/
 /dist/
+/coverage/
+/solr_conf/
+/whoosh_index/
 *.pyc
 *.mo
 *.db
@@ -18,3 +21,5 @@
 nosetests.xml
 *.swp
 *.swo
+*.log
+*.bak
diff --git a/src/wirecloud/platform/preferences/views.py b/src/wirecloud/platform/preferences/views.py
index 1e06ba9c29..5e1cb0d314 100644
--- a/src/wirecloud/platform/preferences/views.py
+++ b/src/wirecloud/platform/preferences/views.py
@@ -320,11 +320,13 @@ def create(self, request, workspace_id):
                 workspace.requireauth = preferences_json['requireauth']['value'].strip().lower() == 'true'
             del preferences_json['requireauth']
 
+        update_workspace_preferences(workspace, preferences_json, not save_workspace)
+
         if save_workspace:
+            cache_key = make_workspace_preferences_cache_key(workspace)
+            cache.delete(cache_key)
             workspace.save()
 
-        update_workspace_preferences(workspace, preferences_json)
-
         return HttpResponse(status=204)
 
 
diff --git a/src/wirecloud/platform/views.py b/src/wirecloud/platform/views.py
index 07de08ece5..0110f68de6 100644
--- a/src/wirecloud/platform/views.py
+++ b/src/wirecloud/platform/views.py
@@ -180,12 +180,7 @@ def get_default_view(request):
 
     if 'default_mode' not in request.session:
         user_agent = ua_parse(request.META.get('HTTP_USER_AGENT', ''))
-        if user_agent.is_mobile:
-            mode = 'smartphone'
-        else:
-            mode = 'classic'
-
-        request.session['default_mode'] = mode
+        request.session['default_mode'] = 'smartphone' if user_agent.is_mobile else 'classic'
 
     return request.session['default_mode']