weird issue when adding custom set

markitup/views.py

@@ -8,7 +8,9 @@ from django.template.context import RequestContext
 from django.shortcuts import render_to_response
 
 from markitup.markup import filter_func
+from django.views.decorators.csrf import csrf_exempt
 
+@csrf_exempt
 def apply_filter(request):
     markup = filter_func(request.POST.get('data', ''))
     return render_to_response( 'markitup/preview.html',