Modern browsers should no longer score 100 on Acid 3 though.
>By April 2017, the updated specifications had diverged from the test such that the latest versions of Google Chrome, Safari and Mozilla Firefox no longer pass the test as written
>By April 2017, the updated specifications had diverged from the test such that the latest versions of Google Chrome, Safari and Mozilla Firefox no longer pass the test as written
But is that what happened? If you pass tests that conflict with the specs, then that implies that the implementation is not based on specs, but on feedback from the test. Which means it may be designed to pass the test, and not much good once you go outside the test examples.
I'll extend the benefit of the doubt and say that it's possible that the implementation is based on an older version of specs, one that matches the tests. But it doesn't inspire confidence that all we're shown is a single screenshot and no source code.