iOS URL fragment(#), WKWebView l

1. 使用 URL.init(string: "#about", relativeTo: indexURL)

if var indexURL = Bundle.main.url(forResource: "www", withExtension: nil) {
            indexURL.appendPathComponent("index.html")
            let url = URL.init(string: "#about", relativeTo: indexURL)!
            webView.load(URLRequest.init(url: url))
}

2. 使用 URLComponents 来构建.

 if var indexURL = Bundle.main.url(forResource: "www", withExtension: nil) {
            indexURL.appendPathComponent("index.html")
            let com = URLComponents.init(string: "#/about")
            let url = com!.url(relativeTo: indexURL)!
            webView.load(URLRequest.init(url: url))
}

Referrence: URI_fragment