Trouble Error Handling

I will receive 404 error in the console but not in the Network panel.

Never mind, I forgot a Semi Colon after the Handle Error function.

Never mind on that Never mind, I haven’t solved my problem. Here’s a picture of the result.Chapter%2015%20Error%20Handling

I have the same issue as listed here, but I can find no solutions. Any help will be appreciated.

On the toolbar of Network controls, tick the “Preserve log” checkbox and you will see the error generating request in the network pane logs.
I had the same problem and solved it that way.
Interesting enough after some usage I tickecd checkbox back and it was still working after that.
See also this question and answers