How to enable delete,update operation in feature service?

AnatoliiTerentiev

Dear Gurus!
I have published map service with feature access (
allowed operation - Create, add, delete, query
).
But when I see the property of feature service through access via url , I see only :
Supported Operations: Query Generate Renderer Return Updates
In the live example of EditorWidget I see:
Supported Operations: Query Add Features Update Features Delete Features Apply Edits
How I can to improve situation?

AnatoliiTerentiev

Now for url http://terentievai:6080/arcgis/rest/...eatureServer/0 I see

Supported Operations: Query Apply Edits Add Features Update Features Delete Features Generate Renderer Return Updates

But
1. When I add or edit features the data is not saved.
2. When editing newly added data editor window closes and disappears, data not saved.
When editing data existing in the geodatabase - changes are not saved and the window closes. OK button - becomes inactive, the Delete button - active
What could be wrong?
ps. Delete operation is performed normally (in geodatabase too).
But if I view my feature layer in  ArcGIS.com Map - all works normally,
edited changes are saved in my geodatabase.