IGV-2076 - A "404" should not count as a failed HEAD request for purposes of retrying with GET.  The GET will also fail with a 404.
IGV-2076 - A "404" should not count as a failed HEAD request for purposes of retrying with GET.  The GET will also fail with a 404.

godotgildor/igv,igvteam/igv,igvteam/igv,itenente/igv,amwenger/igv,amwenger/igv,igvteam/igv,igvteam/igv,amwenger/igv,igvteam/igv,itenente/igv,godotgildor/igv,amwenger/igv,godotgildor/igv,amwenger/igv,godotgildor/igv,itenente/igv,itenente/igv,itenente/igv,godotgildor/igv