The problem arguably is with SPA as an architecture. The problem is not that SPA devs are not implementing these features, it's that the devs are responsible f

The problem arguably is with SPA as an architecture. The problem is not that SPA devs are not implementing these features, it's that the devs are responsible for implementing them in the first place. As other people have noted, even though you have gone through great lengths to make your site work as expected, "open in new tab" does not work. These are browser features, and devs shouldn't have to worry about implementing them.