HPCC-8546 Configmgr doesn't work in IE 8

Signed-off-by: Gleb Aronsky <gleb.aronsky@lexisnexis.com>
Merge pull request #3843 from garonsky/issue-8546_Configmgr_doesnt_work_in_ie8

HPCC-8546 Configmgr doesn't work in IE 8

Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>