Django can not delete csrftoken after logout

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Hi all I am using varnish as a front end cache for a Django app. It all works well with regards to the VCL configuration. The issue i have is that after the user logs out the csrftoken cookie is not deleted and from then on the varnish has a MISS response instead of a HIT. After reading here on stackoverflow some related questions i have this logout view def logout_view(request): response = render_to_response('registration/logout.html', {}, context_instance=RequestContext(request)) if request.user.is_authenticated(): logout(request) if request.GET.get('next', False): response = HttpResponseRedirect(next) response.delete_cookie('sessionid') response.delete_cookie('csrftoken') return response and this Response headers after user has hit the logout page Response Headers Age:0 Cache-Control:max-age=600 Connection:keep-alive Content-Language:en Content-Type:text/html; charset=utf-8 Date:Mon, 23 Sep 2013 09:20:43 GMT Expires:Mon, 23 Sep 2013 09:30:43 GMT P3P:CP="IDC DSP COR ADM DEVi TAIi PSA PSD IVAi IVDi CONi HIS OUR IND CNT" Server:nginx/1.4.1 Set-Cookie:sessionid=; expires=Thu, 01-Jan-1970 00:00:00 GMT; Max-Age=0; Path=/ Set-Cookie:csrftoken=; expires=Thu, 01-Jan-1970 00:00:00 GMT; Max-Age=0; Path=/ Transfer-Encoding:chunked Vary:Cookie, Accept-Language, Host Via:1.1 varnish X-Cache:MISS X-Varnish:1950616479 default.vcl for completeness: backend default { .host = "127.0.0.1"; .port = "8000"; } sub vcl_recv { set req.grace = 15s; if (req.http.Cookie) { set req.http.Cookie = regsuball(req.http.Cookie, "(^|; ) *__utm.=[^;]+;? *", "\1"); # removes all cookies named __utm? (utma, utmb...) - tracking thing } # unless sessionid/csrftoken is in the request, don't pass ANY cookies (referral_source, utm, etc) if (req.request == "GET" && (req.url ~ "^/static" || (req.http.cookie !~ "flash_sessionid" && req.http.cookie !~ "csrftoken"))) { remove req.http.Cookie; } # normalize accept-encoding to account for different browsers # see: https://www.varnish-cache.org/trac/wiki/VCLExampleNormalizeAcceptEncoding if (req.http.Accept-Encoding) { if (req.http.Accept-Encoding ~ "gzip") { set req.http.Accept-Encoding = "gzip"; } elsif (req.http.Accept-Encoding ~ "deflate") { set req.http.Accept-Encoding = "deflate"; } else { # unknown algorithm remove req.http.Accept-Encoding; } } } sub vcl_fetch { set beresp.ttl = 300s; set beresp.grace = 15s; # static files always cached if (req.url ~ "^/static") { unset beresp.http.set-cookie; return (deliver); } # pass through for anything with a session/csrftoken set if (beresp.http.set-cookie ~ "flash_sessionid" || beresp.http.set-cookie ~ "csrftoken") { return (hit_for_pass); } else { return (deliver); } } sub vcl_deliver { # Add a header to indicate a cache HIT/MISS if (obj.hits > 0) { set resp.http.X-Cache = "HIT"; } else { set resp.http.X-Cache = "MISS"; } return (deliver); } On the response headers i see Django setting the cookie value to a date in the past, however the csrftokencookie still persists on the next request. I also tried to remove the 'django.middleware.csrf.CsrfViewMiddleware' middleware but the cookie is still there. Any tips please Thanks

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