There's no clarification in spec or issues that I could find that @import url("test.css") supports() is valid or invalid? If valid/parse-able, what behavior should it have?

It looks like @supports() is valid, but as per spec it isn't with @import ... supports() afaik? Might be an oversight. Thanks!

Spec docs:

• https://www.w3.org/TR/css-cascade-4/#conditional-import
• https://www.w3.org/TR/css-conditional-3/#typedef-supports-condition