No. I have checked that and it works either way. If I use Google chrome it works fine and I thought that the Opera engine was the same as Google Chrome.
Still having the issue after several months and upgrades to os Sierra and the Opera itself. I thought that it might be related to VPN but have uninstalled that software as well but to no effect. Right now when ever I am looking for an image, I just use a private window.
Opera for Mac