Thank you for your continued help. I have been using console.log instead of Y.log because I wasn't sure what the best way of showing the log output. I know about 'render()' but it seemed more straightforward to just CTRL-SHIFT-J to see the log output. Maybe you have a better solution.
Anyway the results are the same I see the log entry for when I register the submit event but I do not see the log entry when I enter the handler. There was one important (now it seems important) I don't see the log entry when I don't have the call to preventDefault(). When I put that call in I see the log entry. I guess there isn't a way for me to just be a "fly on the wall" and everything proceeds as normally with me just listening?