This content cannot be displayed in a frame when adding/updating K2 for SharePoint app

If you encounter the following error while adding or updating the K2 for SharePoint app, try these steps:

1. Add the site to your local intranet or trusted zone:

   • This might resolve the issue without further action.

2. If step 1 doesn't work, set the AllowIframeAppAuthorizationPageDomains value using SharePoint PowerShell:

   • Open SharePoint PowerShell.

   • Execute these commands:

     PowerShell

     $f = Get-SPFarm
     $f.AddGenericAllowedListValue("AllowIframeAppAuthorizePageDomains","*.k2test.net")
     $f.update()

Once resolved, you should see:

Key points:

• These steps offer alternative solutions before addressing the trust pop-up.
• The PowerShell commands modify SharePoint settings to potentially fix the error.
• Replace *.k2test.net with the actual domain if it differs.