When hitting the back button after sitting for a period of time (time out activity), you may see a Generic List Error for every generic list on the page. This is caused by __REQUESTDIGEST from SharePoint being used instead of the appropriate value.
- Navigate to widget definition for GenericListControlWidget in AppManager
- Create a new property of type text and name it ‘sitecollectionurl’
- Add this property to each GenericListControlWidget instance
- Add in the value of the SharePoint domain to each of the instances e.g. "https://[subdomain].sharepoint.com"