Web Page with "Pragma: No-Cache" Tag Stored in Cache Not Deleted

ID: Q234247

The information in this article applies to:

SYMPTOMS

After you view a Web page larger than 64 kilobytes that contains the "Pragma: No-Cache" HyperText Markup Language (HTML) META tag, the Web page is stored in your cache instead of being deleted.


CAUSE

This problem occurs because the Mshtml.dll file processes HTML files in 64K "pages". If an HTML file is larger than 64K, the function call to delete the cache entry is called before the file is written to the cache, so the file is not actually deleted.


RESOLUTION

A supported fix that corrects this problem is now available from Microsoft, but it has not been fully regression tested and should be applied only to systems experiencing this specific problem. If you are not severely affected by this specific problem, Microsoft recommends that you wait for the next service pack for Internet Explorer 4.x that contains this fix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone numbers and information on support costs, please go to the following address on the World Wide Web:

http://www.microsoft.com/support/supportnet/overview/overview.asp
The English version of this fix should have the following file attributes or later:

Date Time Version Size File name Platform
6/16/99 4:57 p.m. 4.72.3706.1500 2,422,032 bytes MSHTML.DLL (x86)
6/16/99 4:03 p.m. 4.72.3706.1500 2,423,056 bytes MSHTML.DLL (Win9x)

NOTE: If this product was already installed on your computer when you purchased it from the Original Equipment Manufacturer (OEM) and you need this fix, please call the Pay Per Incident number listed on the above Web site. If you contact Microsoft to obtain this fix, and if it is determined that you only require the fix you requested, no fee will be charged. However, if you request additional technical support, and if your no-charge technical support period has expired, or if you are not eligible for standard no-charge technical support, you may be charged a non-refundable fee.

For more information about eligibility for no-charge technical support, see the following article in the Microsoft Knowledge Base:
Q154871 Determining If You Are Eligible for No-Charge Technical Support


STATUS

Microsoft has confirmed this to be a problem in Microsoft Internet Explorer 4.01 Service Pack 2.


MORE INFORMATION

When an HTML file is less than 64K, the function call to delete the cache entry is called after the page is written to the cache, so the page is actually deleted from the cache.

Additional query words: 


Keywords          : kbui msiew95 msient msiew98 
Version           : WINDOWS:4.01,4.01 Service Pack 1,4.01 Service Pack 2
Platform          : WINDOWS 
Issue type        : kbprb

Last Reviewed: July 2, 1999