Update: 24 May 2022
A fix provided by Mr K has just been implemented. So far it is looking good.
Bloggers are still adding spoilers to appropriate puzzles. However changes made to some browsers (or addins) make it appear that there are no spoilers. We are aware of this problem and will see if we can overcome it. Meanwhile, only write to me if you can help with solving the problem and please don’t discuss it in the comments.