Error message when you use Internet Explorer to browse a Web page that includes an ASP.NET AJAX application: "Internet Explorer cannot open the Internet site"

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Article ID: 961712 - View products that this article applies to.
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Symptoms

You use Internet Explorer 5.5, Internet Explorer 6.0 or Internet Explorer 7.0 to browse a Web page that includes an ASP.NET AJAX (Asynchronous JavaScript And XML) application. When you select an item from the list in the update panel, you may receive the following error message:
Error:
Internet Explorer cannot open the Internet site
<URL of the Web page>
Operation aborted
If you press F5 to refresh the page, the page is rendered correctly. However, if you change the selected item in the list in the update panel, the error occurs again.

Cause

This problem occurs if a user has a slow network connection. If the user selects an item from the drop-down list in the update panel before the page has rendered the closing <body> tag, an error occurs that causes a redirect to the error page. This error page appends the anchor tag to the document body. When the <body> tag has not been closed, Internet Explorer cannot open the Internet site.

Resolution

Hotfix Information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing the problem described in this article. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site:
http://support.microsoft.com/contactus/?ws=support
Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

Prerequisites

You must have Microsoft .NET Framework 3.5 Service Pack 1 installed to apply this hotfix.

Restart Requirement

You do not have to restart your computer after you apply this hotfix.

Hotfix Replacement Information

This hotfix does not replace any other hotfixes.

File Information

The English version of this hotfix has the file attributes (or later) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.
x86-based versions of Windows Server 2003, Windows XP, Windows Vista, Windows Server 2008
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File nameFile versionFile sizeDateTimePlatform
system.web.extensions.dll3.5.21022.1971,253,37611-Mar-200916:47x86

x64-based versions of Windows Server 2003, Windows XP, Windows Vista, Windows Server 2008
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
system.web.extensions.dll3.5.21022.1971,253,37611-Mar-200916:47x86
system.web.extensions.dll3.5.21022.1971,253,37611-Mar-200917:02x86

Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section of this article.

More information

For more information about the AppendChild method, visit the following Microsoft Web site:
http://technet.microsoft.com/en-us/library/ms535934(VS.85).aspx
For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
824684 Description of the standard terminology that is used to describe Microsoft software updates

Properties

Article ID: 961712 - Last Review: November 2, 2013 - Revision: 4.0
Applies to
  • Microsoft .NET Framework 3.5
Keywords: 
kbnosurvey kbarchive kbautohotfix kbexpertiseadvanced kbsurveynew kbbug kbfix kbqfe KB961712

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