这当然是一种解决方法，但如果你被允许编辑内置对象的属性（就像在大多数浏览器中一样），你可以 Package 这两个函数，并使用拦截处理程序来跟踪它们何时被调用：

function track (fn, handler) {
  return function interceptor () {
    handler.apply(this, arguments)
    return fn.apply(this, arguments)
  }
}

history.pushState = track(history.pushState, function (state, title, url) {
  // do something with `state, `title`, and `url`
  console.log('pushState called with:', { state: state, title: title, url: url })
})


history.replaceState = track(history.replaceState, function (state, title, url) {
  // do something with `state, `title`, and `url`
  console.log('replaceState called with:', { state: state, title: title, url: url })
})

history.pushState(null, 'Title 1', '/example-page')

您可以通过key-value observing观察WKWebView.url

var urlObservation: NSKeyValueObservation?

...
let webView = WKWebView(...)
urlObservation = webView.observe(\.url, changeHandler: { webView, change in
    print("url changed")
})

看来Firefox for iOS也在用这种方式。