I don't think I could give you the steps to recreate it as it seems to be a system-level issue on the Chrome browser. It doesn't happen to everyone but I have a lot of users who report that they have the issue, and unfortunately most are not particularly computer-savvy so it's a big deal trying to explain how to fix it.
When I Googled it, I found a few threads on Google Forums such as this one: https://productforums.google.com/forum/#!topic/chrome/Cz06JxDZeK8, so I was just curious if anyone else who uses SA has experienced it. It's never happened to me on the likes of eBay but has happened on client sites I've built with SA.