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Yes, update your browser. IE8-10 are no longer supported. http://venturebeat.com/2016/01/12/microsoft-ends-support-for-ie8-ie9-ie10-and-windows-8/
If you are really stuck with a security nightmare (i.e. an unsupported browser) then you should consider not deeply nesting your layouts for improved performance. Use CssLayout over HorizontalLayout/VerticalLayout wherever you can.