Remove Safari Navigation Bar on iPhone when body overflow=hidden

I'd like to remove t开发者_StackOverflow中文版he Safari navigation bar when users visit my website from an iPhone.

I've tried

window.scrollTo(0, 1)

and am also using

<meta name="viewport" content="width=device-width; height=device-height; initial-scale=1.0; maximum-scale=1.0;">

in the header.

The problem is that the body tag of my website is set to overflow=hidden so the scroll command does nothing.

Does anyone know a solution?

---

The following code seems to work as a preliminary fix in portrait orientation.

<meta name="viewport" content="width=320; height=416; initial-scale=1.0; maximum-scale=1.0;">