I have to decided to split this issue from http://cmsimpleforum.com/viewtopic.php?f=10&t=8606.
cmb wrote:Anyhow, we'd have to update content.htm with regard to changed URLs: http://www.frankziesing.de/cmsimple/ → http://svasti.de/ and http://notepad-plus-plus.org/ → https://notepad-plus-plus.org/. Note that the latter won't validate, because HTTPS connections can't be checked with the current solution.