Hi,
It looks like the form software links to https pages/images only even if the link is given as http
This can cause problems with images not showing because the certificate doesn't match the website url link for an image. Therefor I provide the http link and not the secure https one. The same happens to images linked to by Thorsten.
Could this be changed at least for images?
There is not much value in enforcing secure links to images I would argue.