https to https redirect to different hostname

Turns out that is not what they wanted at all. What they wanted was to change the middle of the URL whilst leaving the ending alone.

So for example:- http://joe.bogs.com/DocumentRenderer.svc/xxxxx/yyyyy/ to http://dave.jones.com/folder/folder/DocumentRenderer.svc/xxxxx/yyyyy/

Not tested it yet but wandering is this would work?

when HTTP_REQUEST { 
  
   Check if path starts with http://centraldatawebpublicdev.assureweb.co.uk/DocumentRenderer.svc
    if { [string tolower [HTTP::path]] starts_with "/DocumentRenderer.svc"}{ 
  
        Replace https://centraldatawebpublicdev.assureweb.co.uk/DocumentRenderer.svc with 
   https://aswmaindev.assureweb.co.uk/UiServices/UiServices.Public/DocumentRenderer.svc in the path 
       HTTP::redirect [string map {https://centraldatawebpublicdev.assureweb.co.uk/DocumentRenderer.svc https://aswmaindev.assureweb.co.uk/UiServices/UiServices.Public/DocumentRenderer.svc} [string tolower [HTTP::path]] ] 
    }
 } 

If this does work then they I am assuming that they are still going to get an issue with https is used as the hostnames are different.