Issue
When uploading a document to a document library in SharePoint Online that has a Nintex Form published, Internet Explorer presents a window that states "This content cannot be displayed in a frame".
Resolution
In Internet Explorer, please navigate to Settings (Cog in top right) > Internet Options > Security > Trusted Sites > Sites and add the following sites:
*.office.com
*.microsoftonline.com
You may need to close and reopen Internet Explorer for this to take affect.
*.office.com
*.microsoftonline.com
You may need to close and reopen Internet Explorer for this to take affect.
Error Code
"This content cannot be displayed in a frame"
Additional Information
This appears to only occur when there is a SharePoint Column that is 'Required'.