WebKit Observer: Page Title

TitleObserver.swift

var webViewTitleObserver: NSKeyValueObservation?

override func viewDidLoad() {
    super.viewDidLoad()
    
    webViewTitleObserver = webView.observe(\.title, options: .new) { [weak self] webView, change in
        if let title = change.newValue as? String {
            self?.titleDidChange(pageTitle: title)
        }
    }
}

func titleDidChange(pageTitle: String) {
    let title = pageTitle
    if title.contains("about:blank") {
        // Detect _blank targets and new windows
    } else {
        self.title = title
    }
}