The offending issue is only on one site, but it works fine in every other browser.
It's an invision site.
Until last night, when I right-clicked on a link and selected "open in new tab", it would actually open in a new tab. Now it opens a blank page, with the correct address at the top even if I copy paste the address of the link. The same goes for links to the site in emails - a blank page. The same goes for open in new window, but works OK for a private window. It's fine in other browsers, but if anyone can help me find a workaround for Opera I would be more than grateful. I like to have several tabs open for that site.