Perils of Open Tabs

I have had several tabs open in my browser for an extended period of time, across multiple reboots of my computer, and connecting to several different networks.

Today I was traveling and happened to be using the WiFi in the Amex Centurion Lounge. Two of the background tabs in my browser reported privacy errors, and when I tried to go to them anyway, they were redirected to an ATT hotspot error page. What’s really frustrating is that now, I don’t know what one of the original URLS was.

Initial message when page didn’t load
Web Page Blocked

Both pages were hosted on opensource.com and I’m pretty sure were related to GIT, possibly with a group of handy commands to remember.