[INTERNAL][FIX] sap.ui.fl.Utils QUnit tests failing in Edge
[INTERNAL][FIX] sap.ui.fl.Utils QUnit tests failing in Edge

Change-Id: Ia4f1aea6b0a3f3acc221bba7c97760732cd8c0d7

SAP/openui5,SAP/openui5,SAP/openui5,SAP/openui5