"cannot fetch style" error

Hi all, Just an FYI that might be helpful to others with this problem: I sometimes get frustrating errors when trying to edit/customize a citation style. After making an edit that throws an error (most recently: editing a macro used in multiple places), the CSL editor will refuse to save any edits ("undefined" error). Closing the editor and attempting to edit again will produce a new error ("cannot fetch style") again and again. I recently discovered that clearing the browser's cache helps -- it will force you to log in again and that seems to fix the problem.