在安全模式下使用Xalan执行XSLT以创建XHTML会在创建属性时抛出TransformerConfigurationException

I'm trying to use the updated version of Xalan (2.7.2) in secure mode and Having issue with it not able to understand unknown attributes. The problem is, it prevents you from using any stylesheet that emits XHTML (in secure processing mode) because it disallows things like “colspan” attributes of “th” elements.I'm trying to use the updated version of Xalan