Doesn't work Martin as it will go to the next page and asked for some reference number. See screenshot by neun-fella (a few posts above)
I know the reason why , you all better type the tracking no by hand type without any space. ( I had tried copy and paste the
tracking no several times but i did fail a few times)
If you type it wrong it will jump to the page that you found.
So if you type wrong please go back to the mail tracking and type again.
Maybe something wrong with the Hongkong post office website.