providers/saml: fix CSRF errors with POST binding

passbook/providers/saml/views.py

@@ -125,6 +125,10 @@ class LoginBeginView(AccessRequiredView):
             )
         )
 
+    @method_decorator(csrf_exempt)
+    def dispatch(self, *args, **kwargs):
+        return super().dispatch(*args, **kwargs)
+
     @method_decorator(csrf_exempt)
     def get(self, request: HttpRequest, application: str) -> HttpResponse:
         """Handle REDIRECT bindings"""