I deleted my last comment by accident (as it appeared twice in the history), so here it is again for completeness:Hi MC Stuff,you pointed me into the right direction of using a Servlet Filter. By paying closer attention to the Stacktrace in case of an Exception I realized the class com.day.cq.wcm.co...

Hi Mc Stuff,thanks for the reply. Yes there are always two sides of the medal.Our JSP Taglib Code sets a header in the context of an Exception, that should prevent the Dispatcher from Caching the Response for that scenario, i.e. when one of the Components during the initial rendering fails (the snip...