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Re: 500 Internal Server Error

From: olivier Thereaux <ot@w3.org>
Date: Tue, 21 Aug 2007 09:03:34 +0900
Message-Id: <B95795A8-ED62-4913-A96E-93CEBC67D8DC@w3.org>
Cc: <www-validator@w3.org>
To: Carlos <carlos@hospedajewindows.com>

Hi Carlos,

On Aug 21, 2007, at 01:19 , Carlos wrote:
> when I try to validate in http://validator.w3.org/ this URL http:// 
> neumaticos-hernandez.com/ I receive the 500 Internal Server Error,  
> although the website is running ok (there is no DNS problem)

To clarify, the server returning 500 internal server error is not the  
validator, it's your server. This is not only a problem with the  
validator, I can reproduce this whenever connecting "by hand" to the  
server.

I suspect your code is broken, and the brokenness only shows when the  
"browser" is not recognized, or something like that. I'm copying the  
trace I'm getting from your server, in case it helps.

% telnet neumaticos-hernandez.com 80
Trying 82.98.135.3...
Connected to neumaticos-hernandez.com.
Escape character is '^]'.
GET / HTTP/1.1
Host:neumaticos-hernandez.com

HTTP/1.1 500 Internal Server Error
Date: Mon, 20 Aug 2007 23:56:45 GMT
Server: Microsoft-IIS/6.0
MicrosoftOfficeWebServer: 5.0_Pub
X-Powered-By: ASP.NET
X-AspNet-Version: 2.0.50727
Cache-Control: private
Content-Type: text/html; charset=utf-8
Content-Length: 6625

...

[NullReferenceException]: Object reference not set to an instance of  
an object.
    at ASP.global_asax.Session_Start()
[TargetInvocationException]: Exception has been thrown by the target  
of an invocation.
    at System.RuntimeMethodHandle._InvokeMethodFast(Object target,  
Object[] arguments, SignatureStruct& sig, MethodAttributes  
methodAttributes, RuntimeTypeHandle typeOwner)
    at System.RuntimeMethodHandle.InvokeMethodFast(Object target,  
Object[] arguments, Signature sig, MethodAttributes methodAttributes,  
RuntimeTypeHandle typeOwner)
    at System.Reflection.RuntimeMethodInfo.Invoke(Object obj,  
BindingFlags invokeAttr, Binder binder, Object[] parameters,  
CultureInfo culture, Boolean skipVisibilityChecks)
    at System.Reflection.RuntimeMethodInfo.Invoke(Object obj,  
BindingFlags invokeAttr, Binder binder, Object[] parameters,  
CultureInfo culture)
    at System.Web.Util.ArglessEventHandlerProxy.Callback(Object  
sender, EventArgs e)
    at System.Web.SessionState.SessionStateModule.RaiseOnStart 
(EventArgs e)
    at System.Web.SessionState.SessionStateModule.CompleteAcquireState()
    at System.Web.SessionState.SessionStateModule.BeginAcquireState 
(Object source, EventArgs e, AsyncCallback cb, Object extraData)
    at  
System.Web.HttpApplication.AsyncEventExecutionStep.System.Web.HttpApplic 
ation.IExecutionStep.Execute()
    at System.Web.HttpApplication.ExecuteStep(IExecutionStep step,  
Boolean& completedSynchronously)

-- 
olivier
Received on Tuesday, 21 August 2007 00:02:45 GMT

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