Enhance stealth about Object.prototype.hasOwnProperty.call of XMLHttpRequest related scriptlets #576

const Req = new XMLHttpRequest()
Req.open('OPTIONS', 'https://example.com')
Req.send()
const CleanReq = new XMLHttpRequest()
const Properties = ['status', 'statusText', 'readyState', 'response', 'responseURL', 'responseXML', 'setRequestHeader'] as const
Properties.forEach(Key => {
 // 'call' indicates Function.prototype.call
 console.log(`Object.prototype.hasOwnProperty.call(Req, ${Key})`, Object.prototype.hasOwnProperty.call(Req, Key))
 console.log(`Compares XMLHttpReqeust.prototype with clean one ${Key}`, Req[Key] === CleanReq[Key])
})

const Properties = ['status', 'statusText', 'readyState', 'response', 'responseURL', 'responseXML', 'setRequestHeader'] as const
const Req = new XMLHttpRequest()
Req.timeout = 1000
Req.onerror = () => { Func() }
Req.onabort = () => {}
Req.onload = () => { Func() }
Req.ontimeout = () => {}
Req.open('OPTIONS', 'https://example.com/', true)
Req.send()
const CleanReq = new XMLHttpRequest()
function Func() {
 Properties.forEach(Key => {
 // 'call' indicates Function.prototype.call
 console.log(`Object.prototype.hasOwnProperty.call(Req, ${Key})`, Object.prototype.hasOwnProperty.call(Req, Key))
 console.log(`Compares XMLHttpReqeust.prototype with clean one ${Key}`, Req[Key] === CleanReq[Key])
 })
}