HTTPS Redirect -> hang

I can't believe no one else sees the problem. Since the place you are redirecting also contains "aaa", you are in an indefinite redirect loop (thus the "hang").

Based on what you've provided, I would suggest changing your redirect criteria (the if expression) to better identify when you want to redirect. Thus something like this:

if { ([HTTP::uri] starts_with "/aaa/") and not ([HTTP::uri] starts_with "/aaa/abc/") } {
   HTTP::redirect https://[HTTP::host]:1111/aaa/abc/receive
} elseif  ... same as above for /bbb ...

Also note, that the location of the port :1111 should be after the host, not at the end of the uri (unless you actually want it as part of the uri).