Sometimes Lockdown of your browsing device is incomplete without disabling zooming option. Zooming in and out with multi-touch gestures such as pinch-to-zoom can be disabled using kiosk browser like SureFox however the user would still be able to zoom using ‘double-tap to zoom’ feature.
And if you want your webpage to have disabled ‘double-tap to zoom’ feature, you can use following Meta Tag.
<title>Disable Double-Tap to Zoom</title>
<meta content=’width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0′ name=’viewport’ />
<b><font color=”blue”>Disabled Double-Tap to Zoom</font></b>