WKWebView causes my view controller to leak

Question

My view controller displays a WKWebView. I installed a message handler, a cool Web Kit feature that allows my code to be notified from inside the web page:

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Answer 1

I've also noted that you also need to remove the message handler(s) during teardown, otherwise the handler(s) will still live on (even if everything else about the webview is deallocated):

WKUserContentController *controller = 
self.webView.configuration.userContentController;

[controller removeScriptMessageHandlerForName:@"message"];