b) generating an intermediate request based on the received request, submitting the intermediate request to the application on behalf of the client device, and capturing {HEAD ~ output} from {TAIL ~ the application} responsive to the submitted intermediate request 
from
b ) generating an intermediate request based on the received request , submitting the intermediate request to the application on behalf of the client device , and capturing { HEAD ~ output } from { TAIL ~ the application } responsive to the submitted intermediate request
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH