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   ExtensionlessUrl-Integrated-4.0
Error Code   0x00000000
Requested URL   http://mobilityexchange.mercer.com:9016/insights/article/Infographic%20featuring%20highlighs%20from%20Mercer%EF%BF%BD%EF%BF%BD%EF%BF%BDs%202021%20spot%20survey,%20COVID-19%20impact%20on%20global%20mobility%20management.%20Two-thirds%20of%20companies%20have%20international%20assignees/hires%20performing%20their%20job%20temporarily%20from%20another%20country%20than%20the%20assignment%20location%20as%20a%20result%20of%20the%20pandemic.
Physical Path   \\USDFW11AS746FS1\MobilityPortal$\insights\article\Infographic%20featuring%20highlighs%20from%20Mercer%EF%BF%BD%EF%BF%BD%EF%BF%BDs%202021%20spot%20survey,%20COVID-19%20impact%20on%20global%20mobility%20management.%20Two-thirds%20of%20companies%20have%20international%20assignees\hires%20performing%20their%20job%20temporarily%20from%20another%20country%20than%20the%20assignment%20location%20as%20a%20result%20of%20the%20pandemic.
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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