marshaling [Float] or [Double]?

[ingun37]

I can't export a function because it's return type is [Double]

Wasm.hs:10:1: error:
    • Unacceptable result type in foreign declaration:
        ‘[Double]’ cannot be marshalled in a foreign call
    • When checking declaration:
        foreign export javascript "rotatedHemisphere" rotatedHemisphere
          :: Int -> Double -> Double -> Double -> [Double]

I don't think I should turn it into JSArray because what I understand is that JSArray is array of JSVal and Double is not JSVal.

What should I do?