1.WKWebView runJavaScriptAlertPanelWithMessage crash from iOS 9.3
completionHandler must be called even if URL is nil
if let host = self.webkitWebView?.URL?.host {
...
}
else {
webView(_:runJavaScriptAlertPanelWithMessage:initiatedByFrame:completionHandler:)
completionHandler()
//webView(_:runJavaScriptConfirmPanelWithMessage:initiatedByFrame:completionHandler:)
//completionHandler(false)
//webView(_:runJavaScriptTextInputPanelWithPrompt:defaultText:initiatedByFrame:completionHandler:)
//completionHandler(nil)
}
2.实现网页背景完全透明
self.wkWebView.backgroundColor = [UIColor clearColor];
self.wkWebView.opaque = NO;//背景完全透明
