Security - Editing Page Insecure - Loading Mixed Content

[Jason Tolotta]

Browser: Chrome 66 (64-bit), Firefox 60.0.1 (64-bit)

OS: Windows 10 Home

The following warning occurs when editing a page.

Loading mixed (insecure) display content “http://mega.atlassian.net/wiki/plugins/servlet/confluence/placeholder/macro-heading?definition=e2NvZGV9&locale=en_GB&version=2” on a secure page[Learn More] atlassian-editor.min.js:5:702 

The reference link is not secure.
This presents a potential security risk.

[Isaac_nl]

We're seeing the same on some pages in edit mode.

[Jason Tolotta]

My Confluence Cloud instance.

[Davin Studer]

Is that you site or someone else's site?