One in x browsers have this value:290162.0 for me – that one alone is probably enough to make me unique. I got the exact same number for system fonts. I gues

One in x browsers have this value:290162.0 for me – that one alone is probably enough to make me unique. I got the exact same number for system fonts. I guess it's near-impossible to get the features of accept-language without fingerprinting you :-/ but why does js need to know what fonts I have?