There are several places execScript is used in ISC_Core.js when IE is detected as the browser.  Checked in nightly 8.3 and 9.0 builds.
execScript is not supported in IE11 in edge document mode see http://msdn.microsoft.com/en-us/library/ie/bg182625(v=vs.85).aspx#legacyAPIs.
For now I have mapped execScript to eval i.e.;
	Will there be a proper fix coming in smartclient?
							
						
					execScript is not supported in IE11 in edge document mode see http://msdn.microsoft.com/en-us/library/ie/bg182625(v=vs.85).aspx#legacyAPIs.
For now I have mapped execScript to eval i.e.;
Code:
	
	if (isc.Browser.isIE && window.execScript == undefined)
    window.execScript = window.eval;
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