Today, users in some of our CDN regions were unable to open portal pages.
This was because a user opened a portal using Internet Explorer 11 at the exact moment the CDN invalidated a static JavaScript file.
The CDN then attempted to reload the static JavaScript file from our backend. To do this, the CDN also reported the user's browser version to our backend. However, since Internet Explorer 11 is not supported by us, the request was rejected with an error. The CDN cached this error message and subsequently served it to other users. This disrupted the opening of portal pages, preventing users from viewing them.
We have removed the faulty CDN content from the cache, and Smint.io Portals should now function correctly again.
We are already working on preventing the CDN from caching this error message to ensure that this type of incident does not occur again.