We can't assume that "process_view" is called on our panels because a
  middleware may render and then return a response.

diff --git a/debug_toolbar/panels/request_vars.py b/debug_toolbar/panels/request_vars.py
index 956e028..97eb80d 100644
--- a/debug_toolbar/panels/request_vars.py
+++ b/debug_toolbar/panels/request_vars.py
@@ -32,10 +32,13 @@ class RequestVarsDebugPanel(DebugPanel):
             'get': [(k, self.request.GET.getlist(k)) for k in self.request.GET],
             'post': [(k, self.request.POST.getlist(k)) for k in self.request.POST],
             'cookies': [(k, self.request.COOKIES.get(k)) for k in self.request.COOKIES],
-            'view_func': '%s.%s' % (self.view_func.__module__, self.view_func.__name__),
-            'view_args': self.view_args,
-            'view_kwargs': self.view_kwargs
         })
+        if hasattr(self, 'view_func'):
+            context.update({
+                'view_func': '%s.%s' % (self.view_func.__module__, self.view_func.__name__),
+                'view_args': self.view_args,
+                'view_kwargs': self.view_kwargs
+            })
         if hasattr(self.request, 'session'):
             context.update({
                 'session': [(k, self.request.session.get(k)) for k in self.request.session.iterkeys()]
diff --git a/debug_toolbar/templates/debug_toolbar/panels/request_vars.html b/debug_toolbar/templates/debug_toolbar/panels/request_vars.html
index 07c223a..037ef49 100644
--- a/debug_toolbar/templates/debug_toolbar/panels/request_vars.html
+++ b/debug_toolbar/templates/debug_toolbar/panels/request_vars.html
@@ -1,5 +1,6 @@
 {% load i18n %}

+{% if view_func %}
 <h4>{% trans 'View information' %}</h4>
 <table>
 	<thead>
@@ -25,6 +26,7 @@
 		</tr>
 	</tbody>
 </table>
+{% endif %}

 <h4>{% trans 'COOKIES Variables' %}</h4>
 {% if cookies %}