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
aspNetCore
Error Code
0x00000000
Requested URL
https://www.mobilephone4u.co.uk:443/6x-downlight-bathroom-ip44-incl-gu10-lamp-holder-mounting-hole-%C3%B865mm-aluminium-silver-chrome-led-halogen-mouting-frame-%C3%B884x27mm-recessed-lighting
Physical Path
C:\ClientSites\kfdirect.com\mobilephone4u.co.uk\6x-downlight-bathroom-ip44-incl-gu10-lamp-holder-mounting-hole-%C3%B865mm-aluminium-silver-chrome-led-halogen-mouting-frame-%C3%B884x27mm-recessed-lighting
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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