A couple of months ago, I was forced to switch to the Vivaldi browser which I do happen to like a lot.
The Vivaldi browser might be considered the spiritual successor to the Opera browser, sharing the same original author. However, unlike Opera, Vivaldi is almost entirely based on Chrome using the very same Blink layout engine.
Nonetheless, one problem keeps on pestering me: I am required to log in for each and every of my Stack Exchange accounts separately.
However, testing the very same Vivaldi version 2.1.1337.36 (stable) with the independent Caniuse.com tester yields an all green positive test result.
Could it be that a bug in the Stack Exchange code is keeping me from successfully logging in across all my Stack Exchange network accounts?