diff --git a/planetstack/core/xoslib/methods/sliceplus.py b/planetstack/core/xoslib/methods/sliceplus.py
index 0539e62..cdb2f73 100644
--- a/planetstack/core/xoslib/methods/sliceplus.py
+++ b/planetstack/core/xoslib/methods/sliceplus.py
@@ -7,8 +7,7 @@
 from django.forms import widgets
 from core.xoslib.objects.sliceplus import SlicePlus
 from plus import PlusSerializerMixin
-from xosapibase import XOSListCreateAPIView, XOSRetrieveUpdateDestroyAPIView
-from rest_framework.exceptions import PermissionDenied as RestFrameworkPermissionDenied
+from xosapibase import XOSListCreateAPIView, XOSRetrieveUpdateDestroyAPIView, XOSPermissionDenied
 
 if hasattr(serializers, "ReadOnlyField"):
     # rest_framework 3.x
@@ -82,7 +81,7 @@
         current_user_can_see = self.request.QUERY_PARAMS.get('current_user_can_see', False)
 
         if (not self.request.user.is_authenticated()):
-            raise RestFrameworkPermissionDenied("You must be authenticated in order to use this API")
+            raise XOSPermissionDenied("You must be authenticated in order to use this API")
 
         slices = SlicePlus.select_by_user(self.request.user)
 
@@ -108,7 +107,7 @@
 
     def get_queryset(self):
         if (not self.request.user.is_authenticated()):
-            raise RestFrameworkPermissionDenied("You must be authenticated in order to use this API")
+            raise XOSPermissionDenied("You must be authenticated in order to use this API")
         return SlicePlus.select_by_user(self.request.user)
 
 
diff --git a/planetstack/core/xoslib/static/js/xoslib/xosHelper.js b/planetstack/core/xoslib/static/js/xoslib/xosHelper.js
index a055093..2779cd0 100644
--- a/planetstack/core/xoslib/static/js/xoslib/xosHelper.js
+++ b/planetstack/core/xoslib/static/js/xoslib/xosHelper.js
@@ -145,18 +145,21 @@
             parsed_error=undefined;
             width=640;    // django stacktraces like wide width
         }
+
         console.log(responseText);
         console.log(parsed_error);
 
+        if (parsed_error && ("detail" in parsed_error)) {
+            parsed_error = parsed_error["detail"];
+        }
+
         if (parsed_error && ("error" in parsed_error)) {
+            if ((!parsed_error.reasons) && (parsed_error.fields)) {
+                // deal with me renaming 'reasons' to 'fields'
+                parsed_error.reasons = parsed_error.fields;
+            }
             // this error comes from genapi views
             $("#xos-error-dialog").html(templateFromId("#xos-error-response")(parsed_error));
-        } else if (parsed_error && ("detail" in parsed_error)) {
-            // this error response comes from rest_framework APIException
-            parsed_error["error"] = "API Error";
-            parsed_error["specific_error"] = parsed_error["detail"];
-            parsed_error["reasons"] = [];
-            $("#xos-error-dialog").html(templateFromId("#xos-error-response")(parsed_error));
         } else {
             $("#xos-error-dialog").html(templateFromId("#xos-error-rawresponse")({responseText: strip_scripts(responseText)}))
         }