The link for the CK12 demo goes to a pageset with a zipslip #148
Description
On the page to play with the standard board sets, the link for playing with CK12 goes to an older generated file which will on longer work once we release the new OVF player version because it contains a folder called ".." (see eQualityTime/ovfplayer#223 for details).
I assume it's a bug you fixed in the generating code (or a library you were using fixed it), because the old default for the CK20 one also contained this error, but the new ones don't.
I regenerated the CK12 one (by downloading the pptx and just uploading it again) and checked the bug is no longer present, this is the link to the new version: https://designs.theopenvoicefactory.org/7ecc07ac6d32b67bb200fcf72b0bff7c.obz (obviously feel free to redo it yourself, but if you do then please raise an issue on the player to let me know the CK12 link to use).
This won't impact users until we release the new player version, but obviously the fewer people who start using a pageset that'll break soon due to security issues, the better, right?