HTTP::respond + append URI from HTTP::request

The 301 vs. a 302 is the request of the client, and to my understanding, HTTP::respond is the only way to issue a 301. Using the example I can append anything to the URI, but I get a double slash in the request

Here is the rule I am using (complements of the devcentral examples)

 
 when HTTP_REQUEST { 
     Check if there is a class entry which starts with the requested URI 
    set row [findclass [string tolower [HTTP::host]] $::host_redirects] 
     Check if there was a matched row 
    if { $row ne "" }{ 
 log local0. "Matched $row" 
        Send a response using the status and location from the class 
       HTTP::respond [getfield $row " " 2] Location [getfield $row " " 3][HTTP::uri] Connection Close 
        Clear the row variable 
       unset row 
    } 
 } 
 

The request was to http://host1.domain.com/foo

the 301 sends the request to

https://securehost.domain.com//foo

Is there a way to remove the double slash from this line, as it is sending the entire URI

HTTP::respond [getfield $row " " 2] Location [getfield $row " " 3][HTTP::uri] Connection Close

Thanks

-L