The related issue was apparently recently closed.

I think this very basic functionality – the 'Back' button – should work as the internet intended, and has mostly worked, for the past 25.

It seems straightforward enough if built in from the ground up, like Wikimedia does. Why build a ToC Macro that breaks the internet?

https://jira.atlassian.com/browse/CONF-26334[Also]

Also, this Jira website crushes my CPU.