how to tell source of runtime error

I have an app which gives strange runtime errors when it’s up on my screen but not being actively used, so it’s not in response to any user input. One I got today is:

Unhandled OutOfBoundsException
Message:

Stack:

WebSession._ExecuteEvent%%osA1v&b
WebSession._HandleEvent%%oso<_HTTPServer.HTTPRequestContext>
WebSession._HandleRequest%i4%oso<_HTTPServer.HTTPRequestContext>
WebApplication._HandleHTTPRequest%%oo<_HTTPServer.HTTPRequestContext>
_CGIGateway.GatewayRequestThread.Event_Run%%o<_CGIGateway.GatewayRequestThread>

Is there any way to tell what’s causing an error like that?

Kevin Clark

Without knowing what event was sent from the browser it would be really hard to track down. You might have a shot if you had the browser that caused the error in front of you with the developer tools open when the error occurred.