only one filter needs to match

[monteslu]

Not sure this is by the spec, or just the chrome implementation, but in chrome you only need to match one of the filters in your filter list.

Perhaps .every should be .some ?

https://github.com/thegecko/webusb/blob/master/src/usb.ts#L89

[thegecko]

I think maybe you are right. Step 5 here:

https://wicg.github.io/webusb/#request-the-usb-permission

outlines to remove devices if they don't match a filter, therefore they only need to match one :)