I'm using the new Google Sheets API and any every time I try to get the active cell, it just returns cell A1 in the first sheet, no matter what. Here's my code:
var s = SpreadsheetApp.getActiveSpreadsheet();
var ss = s.getActiveSheet();
var result = ss.getActiveCell().getValue();
Seems like a Google bug...
This is currently working perfectly for me. If I highlight a cell in the active sheet and run your code, the value in the cell is logged for me.