How to set iOS WkWebview zoom scale

Question

My iOS app has a WKWebView component which shows an full-screen WebApp (1280x800) with different aspect ratio and size then a iPad (4:3, 1024x768)

I want to set the

Answer 1

Add <meta name="viewport" content="width=device-width, shrink-to-fit=YES"> to your HTML file.

It works as if you used scalePageToFit in UIWebView.