Const support
support: object
arrayBuffer
arrayBuffer: boolean = 'ArrayBuffer' in self
blob
blob: boolean = 'FileReader' in self &&'Blob' in self &&(function () {try {new Blob()return true} catch (e) {return false}})()
formData
formData: boolean = 'FormData' in self
iterable
iterable: boolean = 'Symbol' in self && 'iterator' in Symbol
searchParams
searchParams: boolean = 'URLSearchParams' in self