WKWebView is Weird
Up until iOS 8 (2014), displaying web content in an application required you to either launch out to Safari or use UIWebView. The benefit of using UIWebView was the the user did not have to leave your application, but the downside was that UIWebView was significantly underpowered when it came to Safari as it had (and still does) the benefit of a more modern rendering and JavaScript engine, so UIWebView content did not perform as well....