The companies behind the rendering engines that power all major web browsers have announced a new initiative called Interop 2022 which is designed to ensure that websites will look and function the same no matter which browser you use to access them.
Apple, Google, Microsoft and Mozilla are all integrated, which means other browsers that use the Webkit, Blink/Chromium or Gecko rendering engines should all benefit.
As Mozilla emphasizes, the web is already defined by a set of standards that browser manufacturers can use to ensure that their applications can display web pages correctly. But that doesn’t mean they’ll all do it the same way…unless there’s some cooperation.
Interop 2022 therefore brings together the people behind these browsers with the aim of focusing on 15 areas:
- Cascading layers
- Color spaces and functions
- Dialog element
- Typography and Encodings
- Window units
- Web compatibility
- aspect ratio
- Flexible box
- Sticky positioning
The last five in this list are carryovers from an earlier initiative called Compatible 2021 it was a partnership between Microsoft and Google.
The new initiative involves a set of automated tests that can tell you how well each browser meets interoperability standards overall (or just in a specific area). You can see the latest scores on wpt.fyi/interop-2022. Currently, no browser gets a perfect score, but you can see how much things have already improved since the start of the year, especially when you look at the scores of the experimental versions of the browsers rather only stable releases.