Fixed bug when creating multiple consecutive pages

Today, during a customer demonstration, we found a bug when creating multiple status pages in succession.

Creating the first page worked fine. However, when trying to add a second, it started reconfiguring the first page instead of creating a new one. This loop would continue until the users logged out and back in again.

The bug was caused by a redirect becoming incorrectly cached on our CDN.

This has now been patched and tested.