Just installed the newest stable version of Opera - 7.54u2... it's a security release, nothing more, but yay, they fixed the issue with must-revalidate causing pages to reload where they shouldn't! (Which was the fault of the servers sending the directive when not needed, in the first place, but yay, fixedness!)

I ♥ Opera and the folks at Opera. Good browser and good fun to chat with, respectively.