Passing HTTP Authorization header thru APM

yes but with a small irule. you need to add a specific headed which will tell the apm module that the session is not interactive.

 when HTTP_REQUEST {
HTTP::header insert "clientless-mode" 1
}

in this case the APM will not redirect the user, but you will have by yourself in the irule to look for authentication information, decode it and assign it to APM variable. this can be done by adding a irule event aggent in the VPE, and set the session.logon.last.username and pasword in the irule event.