excelsystems Report post Posted June 5, 2013 We use FusionCharts in Ajax application which replaces contents of some element with HTML which has FusionChart in it. The issue is that if FusionChart won't finish rendering and HTML will be replaced with another HTML which has FusionChart, it will throw an exception. Unfortunately this exception is impossible to catch with try/catch block because in raiseEWEvent exception it is thrown in another context because of: // Throw error in a separate scope so that the execution of this script // is not blocked. Do this only when debugMode is enabled window.setTimeout(function () { throw err; }, 0); Also comment is a bit misleading because debug mode is disabled in my case, but exception is still thrown. Share this post Link to post Share on other sites