使用tableview內(nèi)嵌wkwebview侦锯，獲取webview的高度不正確奖蔓，底部出現(xiàn)一大片空白
NSString *jScript = @"var meta = document.createElement('meta'); meta.setAttribute('name', 'viewport'); meta.setAttribute('content', 'width=device-width,user-scalable=no'); document.getElementsByTagName('head')[0].appendChild(meta);";
WKUserScript *wkUScript =[[WKUserScript alloc] initWithSource: jScript injectionTime:WKUserScriptInjectionTimeAtDocumentEnd forMainFrameOnly:YES];
WKUserContentController *wkUController = [[WKUserContentController alloc] init];
[wkUController addUserScript:wkUScript];
改變html頁頭猩谊，不能縮放
