Obtain http header information.

README.md

Introduction

We can obtain all of the HTTP header information from WKWebView.

webview.swift

extension ViewController: WKNavigationDelegate, WKUIDelegate {
    func webView(_ webView: WKWebView, decidePolicyFor navigationResponse: WKNavigationResponse, decisionHandler: @escaping (WKNavigationResponsePolicy) -> Swift.Void) {
        let response = navigationResponse.response as! HTTPURLResponse
        // Here can get all of the http header infomation after transfer to other view.
        self.cookie = response.allHeaderFields["Set-Cookie"] as? String
    }
}