HPCC-10928 Fix URL Prefix issues

Fixes HPCC-10928

Signed-off-by: Gordon Smith <gordon.smith@lexisnexis.com>
Merge pull request #5469 from GordonSmith/HPCC-10928

HPCC-10928 Fix URL Prefix issues

Reviewed-By: Miguel Vazquez <miguel.vazquez@lexisnexis.com>
Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>