HPCC-9621 IE8 + XP ECL Watch Issues

New ECL Watch does not display in IE 8 + XP.

Fixes HPCC-9621

Signed-off-by: Gordon Smith <gordon.smith@lexisnexis.com>
Merge pull request #4592 from GordonSmith/HPCC-9621

HPCC-9621 IE8 + XP ECL Watch Issues

Reviewed-By: Miguel Vazquez <miguel.vazquez@lexisnexis.com>
Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>