WkWebKit - javascript on loaded page finds window.webkit is undefined

Question

I\'m experimenting with WkWebKit talking back and forth between app and page. I can get javaScript to execute fine using WkWebView evaluateJavascript method, but when I try

Answer 1

The window.webkit namespace only appears in webview with script message handlers. Make sure that you have called addScriptMessageHandler method of WKUserContentController.