Click here to Skip to main content
Click here to Skip to main content

Testing and Parsing an ASP.NET YSOD (Yellow Screen Of Death) from an XMLHttpRequest.responseText

By , 14 Apr 2010
Rate this:
Please Sign up or sign in to vote.


After a minor bout of forgetfulness regarding legal regexp flags in Javascript, I knocked this one out that parses the comment block at the end of an YSOD.


var rxYSOD = /<!--\s*\[(.*?)]:(\s*.*\s(.*[\n\r]*)*?)\s*(at(.*[\n\r]*)*)-->/;
if (rxYSOD.test(text)) {
    // looks like one..
    var ysod = rxYSOD.exec(text);
    errObj = { Message: ysod[2], StackTrace: ysod[4], ExceptionType: ysod[1] };

will find and parse the comment block shown. I am guessing that is why they put it there....


<!-- omitted -->
    <body bgcolor="white">
		<!-- omitted -->
[ArgumentException]: Unknown web method ValidateUser.
Parameter name: methodName
   at System.Web.Script.Services.WebServiceData.GetMethodData(String methodName)
   at System.Web.Script.Services.RestHandler.CreateHandler(WebServiceData webServiceData, String methodName)
   at System.Web.Script.Services.RestHandler.CreateHandler(HttpContext context)
   at System.Web.Script.Services.RestHandlerFactory.GetHandler(HttpContext context, String requestType, String url, String pathTranslated)
   at System.Web.Script.Services.ScriptHandlerFactory.GetHandler(HttpContext context, String requestType, String url, String pathTranslated)
   at System.Web.HttpApplication.MapHttpHandler(HttpContext context, String requestType, VirtualPath path, String pathTranslated, Boolean useAppConfig)
   at System.Web.HttpApplication.MapHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
   at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)


This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

About the Author

Sky Sanders
Software Developer (Senior) Salient Solutions
United States United States
My name is Sky Sanders and I am an end-to-end, front-to-back software solutions architect with more than 20 years experience in IT infrastructure and software development, the last 10 years being focused primarily on the Microsoft .NET platform.
My motto is 'I solve problems.' and I am currently available for hire.
I can be contacted at

Comments and Discussions

Generaldoesn't work on chrome PinmemberDotNetWise21-Apr-11 5:57 

General General    News News    Suggestion Suggestion    Question Question    Bug Bug    Answer Answer    Joke Joke    Rant Rant    Admin Admin   

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.

| Advertise | Privacy | Mobile
Web04 | 2.8.140421.2 | Last Updated 14 Apr 2010
Article Copyright 2010 by Sky Sanders
Everything else Copyright © CodeProject, 1999-2014
Terms of Use
Layout: fixed | fluid