I have a security cert however when using firefox or safari the lock disappears during one page checkout. The url still shows a httpS. I’ve fond responses to look at images/media but I don’t see any issues. Can someone take a peak and let me know if they see what is causing it?
I didn’t see anything in the sourcecode that immediately jumps out, but I’d bet money that it’s your online chat program that is causing an issue.
I’d try disabling the chat system, and see if the lock appears.
The other thing that will cause the lock to disappear is if you are calling an image (i.e. a spacer.gif) that doesn’t existing or returns an error… that will also cause the lock to go away.