SSL issues with users signatures

[Duke49th]

Hi.

We've installed SSL certificate on our Forum. vBulletin 4.2.3

The issue now is that it shows unsecured connection in threads where users use signatures with non-https urls.

Why is that? And how to fix that?

It doesnt feel right as many other websites such as facebook, google/youtube and many other big sites with dozens of http-urls are not causing that issue.

I was not even able to google this issue. Feels like Im the only one.

Thank you.

Edit: Or for another example look at this site: https://theadminzone.com/forums/vbulletin.87/ It shows some images in the footer area with non-https urls. Still yet it shows no unsecured connection. I don't get it^^

--------------- Added [DATE]1459314173[/DATE] at [TIME]1459314173[/TIME] ---------------

Ok...another forum helped me.

On this site is a mod for this: https://vborg.vbsupport.ru/showthread.php?t=288060