Server Side Solution (IIS7.x) For Download failure in IE

2013-03-22

If you have problem downloading some files extensions in IE specially IE 8 and different errors like the below

In case you want to solve the issue from client side, you could create the following registry-key: [HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings] (DWORD) "BypassSSLNoCacheCheck"=1

As discussed in the following KB: 815313 Prevent caching when you download active documents over SSL WWW.support.microsoft.com/kb/815313/EN-US

But For large Environments that have 100s of clients look for a server side solution which should adjust header on the server side You can Use URL Rewrite https://www.iis.net/downloads/microsoft/url-rewrite

Deleting pragma from header resolves the issue server side:

For example

Then you can use URL Rewrite in IIS7.x to edit header

Then I have added a Rule using URL Rewrite and it should be like that in web.comfig:

<rewrite>

<outboundRules>

<rule name="Pragma" preCondition="NotJS" patternSyntax="Wildcard">

<match serverVariable="RESPONSE_Pragma" pattern="*" negate="false" />

<action type="Rewrite" value="" />

<conditions>

</conditions>

</rule>

<preConditions>

<preCondition name="NotJS" patternSyntax="Wildcard">

<add input="{REQUEST_URI}" pattern=".js" negate="true" />

<add input="{REQUEST_URI}" pattern=".css" negate="true" />

<add input="{RESPONSE_CONTENT_TYPE}" pattern="application/pdf" negate="true" />

<add input="{RESPONSE_CONTENT_TYPE}" pattern="text/csv" negate="true" />

<add input="{RESPONSE_CONTENT_TYPE}" pattern="text/xml" negate="true" />

<add input="{RESPONSE_CONTENT_TYPE}" pattern="image/png" negate="true" />

<add input="{RESPONSE_CONTENT_TYPE}" pattern="image/jpg" negate="true" />

<add input="{RESPONSE_CONTENT_TYPE}" pattern="image/gif" negate="true" />

</preCondition>

</preConditions>

</outboundRules>

</rewrite>

Results … The Pragma disappeared.

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