When a magnification is altered from default 1.0 (100%) I'm trying to maintain my orignal layout - set in IB like so: func fit(_ childView: NSView, parentView: NSView) { childView.translatesAutoresizingMaskIntoConstraints = false childView.topAnchor.constraint(equalTo: parentView.topAnchor).isActive = true childView.leadingAnchor.constraint(equalTo: parentView.leadingAnchor).isActive = true childView.trailingAnchor.constraint(equalTo: parentView.trailingAnchor).isActive = true childView.bottomAnchor.constraint(equalTo: parentView.bottomAnchor).isActive = true }where the childView is the webView and its parent container view - fit() called from viewDidLoad(). The result is the view is pegged to top left, nice but I'like the window content to match the now smaller or larger webView - using scroll bars if needbe. Any user attempt to resize window, being to skew the layout until they resume default.Can someone suggestt how to go about supporting magnification ?

If I create, via interface builder, a window with a WKWebView, all is nice. I wire it up, constraints and added drop-n-drop support for asset viewing. But upon loading say a movie for example, the window appears to obtain a scroll view. This is easily triggered when resizing the window and make the window smaller - the video will be resized once vertical size is changed, but the addition of a horizontal scrollbar cannot be removed, unless a resize is large enough for the video to fit.I'd like to hide the scroll views' sliders when the mouse leaves the window, but I first need a way to access the scrollView.I have tried to query the WKWebView's enclosingScrollView - but always nil, and on MacOSX, there is no scrollView as on iOS.Any help appreciated, thanks.