Summary

When accessing the K2 Appit for SharePoint application page using the SharePoint Online page layout view, the following error occurs: 

Image


Cause

The new SharePoint Online page layout does not parse in the correct parameter value for the host URL on redirect. Notice the {HostUrl} placeholder in the URL below:

".../sites/AppCat/K2AppitforSharePoint/Pages/Settings.aspx?SPSiteURL={HostUrl}&tsapp=1"

 

This is a SharePoint Online issue. 

Workaround

Revert to Classic page layout view as described in SharePoint Online User Interface changes.