Redirect SharePoint 401 Unauthorized back to login page

Login Redirect.

 When you hit cancel on SharePoint login promp it takes you to an annoying "401:Unauthorized"

in case you do not want this message, Instead want SharePoint to redirect back to the login page follow the below steps

Create a default redirect file

1) Add the attached htm file… Default.htm and place it in “C:\inetpub\custerr\en-US\Custom”

Modify applicationHost.config to enable custom error on target Web-Application

1) Open file “C:\Windows\System32\inetsrv\config\applicationHost.config” in notepad.

2) Find the tag (replace with valid webapplication Name as in IIS manager)

<location path="xxxxxxxxxxxxxxxxxx">

3) Replace

<httperrors existingresponse="PassThrough"> 

With

 <httpErrors allowAbsolutePathsWhenDelegated="true" errorMode="Custom" existingResponse="PassThrough" />

4) Save and Exit

IIS entry for the redirect page in target Web-Application

1) Open IIS Manager (Start > run > inetmgr)

2) Select the Web Application > Error Pages

3) Add a custom error page for 401.1 and point it to the custom Default.htm

4) Similarly, repeat step 3 to make an entry for 401.2

5) Also, Edit the default 401 item to set the same path and Exit IIS Mgr

6) Edit the web.Config of the webApp and Find

 <httperrors>

 Replace with

<httperrors errormode="Custom" existingresponse="Auto">

7) Save and close.

Tags: SharePoint custom Redirect | IIS
Saravjeet Lamba