This question already has an answer here:
Here's the scenario:
- I'll linger on a page for a short while, and upvotes, close-votes comments, edits, and other content will come in, and the page will update itself
- I click on some link to documentation or something
- I click the back button.
After I click the back button, all of the upvotes, comments, close votes, etc, that occurred while I was on the page, are not reflected in the page until I refresh.
This is sometimes disorienting.