I have Safari Version 10.0.2 (10602.3.12.0.1) running on my late 2012 Mac mini 10.10.5 oddness that I have never experienced before. When I open a new tab, enter the url of a site and while it's loading I go back to the other tab the site in the new tab loads up in the previous tab and the tab that I tried to load it in is blank. This happens about 75% of the time and it's getting annoying. Anyone else experiencing this? Suggestions on how to troubleshoot it?