Our Knack application which has been running without issue for a long time started prompting our users today with a “Validate your session”. Our application is embedded in an HTML wrapper and uses Google SSO to logon.
It happens in both Chrome and Edge
It seems clearing all browser cache and cookies will allow it to work for a little while and then the error returns.
Clicking on Validate your session just causes an endless spinning wheel
Chrome shows the following issues:
Invalid ‘X-Frame-Options’ header encountered when loading ‘https://us-east-1-renderer-write.knack.com/’: ‘‘allow-from’ https://us-east-1-renderer-write.knack.com’ is not a recognized directive. The header will be ignored.
The server address us-east-1-renderer-write.knack.com appears to be uncontactable.
Any ideas would be greatly appreciated.