HTTP Error 404.11 - Not Found

The request filtering module is configured to deny a request that contains a double escape sequence.

Most likely causes:

  • The request contained a double escape sequence and request filtering is configured on the Web server to deny double escape sequences.

Things you can try:

  • Verify the configuration/system.webServer/security/requestFiltering@allowDoubleEscaping setting in the applicationhost.config or web.confg file.

Detailed Error Information:

Module   RequestFilteringModule
Notification   BeginRequest
Handler   ExtensionlessUrlHandler-Integrated-4.0
Error Code   0x00000000
Requested URL   https://www.hopkinsmedicine.org:443/gec/events/GEC/event/10/31/2013/L-Bayview%20Campus%20-JHAAC-%20Norman%20Library-/T-Conference/K-johns/K-hopkins/K-geriatric/K-division/K-grand/K-rounds/K-research/K-clinical/K-case/clinical-social-and-scientific-foundations-of-geriatric-medicine
Physical Path   E:\WebRoot\hopkinsmedicine.org\gec\events\GEC\event\10\31\2013\L-Bayview%20Campus%20-JHAAC-%20Norman%20Library-\T-Conference\K-johns\K-hopkins\K-geriatric\K-division\K-grand\K-rounds\K-research\K-clinical\K-case\clinical-social-and-scientific-foundations-of-geriatric-medicine
Logon Method   Not yet determined
Logon User   Not yet determined

More Information:

This is a security feature. Do not change this feature unless the scope of the change is fully understood. You should take a network trace before changing this value to confirm that the request is not malicious. If double escape sequences are allowed by the server, modify the configuration/system.webServer/security/requestFiltering@allowDoubleEscaping setting. This could be caused by a malformed URL sent to the server by a malicious user.

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