Ios webview video autoplay

It seems like the iframe API has changed since the time of the previous answer. I have updated the HTML that's loaded in the WKWebView based on the iframe API Reference. Using this code I managed to autoplay YouTube videos in fullscreen in a WKWebView on iOS11.

class YouTubeVideoPlayerVC: UIViewController { @IBOutlet weak var videoPlayerView: WKWebView! var videoURL:URL! // has the form "https://www.youtube.com/embed/videoID" var didLoadVideo = false override func viewDidLoad() { super.viewDidLoad() videoPlayerView.configuration.mediaTypesRequiringUserActionForPlayback = [] } override func viewDidLayoutSubviews() { super.viewDidLayoutSubviews() // Size of the webView is used to size the YT player frame in the JS code // and the size of the webView is only known in `viewDidLayoutSubviews`, // however, this function is called again once the HTML is loaded, so need // to store a bool indicating whether the HTML has already been loaded once if !didLoadVideo { videoPlayerView.loadHTMLString(embedVideoHtml, baseURL: nil) didLoadVideo = true } } var embedVideoHtml:String { return """ """ } }