URL redirection not working for below Irule

when HTTP_REQUEST { 
    if { ([HTTP::host] contains "act-mapviewer.aer.ca") } { 
        switch -glob [HTTP::uri] {                  
            "/Html5/Index.html?viewer=aerscheme" { 
                HTTP::redirect https://extmapviewer-uat.aer.ca/AER/index.html?viewer=aerscheme
            }
            "/geometryserver" {
                HTTP::redirect http://[getfield [HTTP::host] ":" 1]:8080/arcgis/rest/services/Utilities/Geometry/GeometryServer
            }
            "/" {
                HTTP::redirect https://extmapviewer-uat.aer.ca/AER/index.html?viewer=aerscheme
            }
        }
    }
}