Rewrite to URL and strip part of the URI

Sorry...That won't work 🙂

You could use the above to set the Variable like this:

set uri [HTTP::uri [string map {"/v1" "" "/v2" ""} [HTTP::uri]]]

Then you could do the following:

HTTP::redirect "http://[HTTP::host]$uri"

Or you could l just do this:

 when HTTP_REQUEST { if { ( [string tolower [HTTP::uri]] contains "/v1" ) or ( [string tolower [HTTP::uri]] contains "/v2" ) } { HTTP::redirect "http://[HTTP::host][string map {"/v1" "" "/v2" ""} [HTTP::uri]]" } }