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Document.Cookie Property Returns an Empty String

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Symptoms

When you use client-side code (the Document.Cookie property) to write cookies, and then use the same method to retrieve the cookies, you may receive an empty string or the following error message:
ERROR_INSUFFICIENT_BUFFER

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Cause

This problem may occur if the total size of the cookies that are stored in your domain is 4,096 bytes or greater. This is a limitation in the current version of Mshtml.dll.

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Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.

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More information

To see that the cookies actually exist even though the Document.Cookie property cannot retrieve them, follow these steps:
  1. Start Internet Explorer.
  2. On the Tools menu, click Internet Options.
  3. On the General tab, click Settings.
  4. In the Settings dialog box, click View Files.

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Keywords: KB820536, kbprb

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Article Info
Article ID : 820536
Revision : 2
Created on : 9/9/2003
Published on : 9/9/2003
Exists online : False
Views : 315