I have a chart that is using a datasource which queries a web service based on a time range selected by the user. The web service is set to limit the results to a maximum of 800 values. In IE9 it is no problem and the request duration for a query takes 203ms with a content length of 100264. The same query in IE8 results in a a script error on the page "A script on this page is causing Internet Explorer to run slowly". Is there any guidance on datasource response size limitations with IE8?