some https pages are broken

[avalanch07]

Some threads that have "Mixed content" aka http and https requests makes the thread or page come up as insecure. Like this one http://gamehacking.org/vb/forum/mis...8-doses-of-lsd

There are 2 plugins to help with this though, depends on your preference.
https://www.vbulletin.org/forum/showthread.php?t=288060 - if the image is external and use http instead of https, it's cached locally
https://www.vbulletin.org/forum/showthread.php?t=253309 - if any external images are found, they are cached locally, even if they have a secure (https) link.

[avalanch07]

Also, you can use this to prevent non ssl content from even loading.

Pop this in you headerincludes

<meta http-equiv="Content-Security-Policy" content="upgrade-insecure-requests">

More info: CSP: upgrade-insecure-requests - HTTP | MDN

-test. (image linked from a site that doesn't support https)