Changes

The second idea is less important and require a deeper investigation as it can be tricky to provide an accurate information. Currently on MDN, most of our pages contain information about several features at the same time or information about feature which evolved greatly over time. Therefor, such information can be often misleading if not handled very carefully. More specifically, Such summary information can hide inter-compatibility problems: the "support" may mean "it can be made work in this browser", "follow the spec, but maybe with a couple of minor glitch", "follow perfectly the spec". The flexbox support is one example: most modern browsers follow the spec, but maybe with a couple of minor glitch. But flexbox was available in one way or another in browsers long time ago (but interoperability was a nightmare to achieve).

==== Compatibility Filters ====