MDN Browser Compatibility

Florian Scholz looks at the data set aiming to ease checking browser compatibility.

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Many browsers on countless devices aim to support a growing web technology stack. Unfortunately, finding out what works where often means extensive manual testing.

Web content should be compatible with as many browsers as possible. Compatibility, like accessibility, is an important concern if you wish to avoid excluding people from your website or app. However, it is often difficult to tell whether a certain feature works in a given browser; for example is it supported correctly, does it require a prefix, or is it supported with a non-standard name or behaviour? This can quickly multiply – do you research every feature in your code to tell if they are supported enough? If your CSS files use more than 200 properties, you will probably start guessing how far back browsers are likely to support your layout. Having no real answer about the compatibility of an entire code base is not ideal.