iOS9.2 webview (UIWebview?) is broken in Facebook or maybe other apps' in-app-browser, I mean broken is that it offers inconsistent
window.innerWidth after rotating.
here is the result on iOS9.2.1 iPhone6s, LINE in-app-browser
|rotate to landscape||736||370||736||414|
|rotate to portrait||736||1116||414||736|
well jQuery offers the consistent dimensions, but with wrong values( here is the why)
there are some things I happened to trigger this, but newest IOS version have no problem, maybe this is fixed by Apple.
shrink-to-fit-no to viewport if anything related to viewport crashes. And it worked, I don't know why.
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">