# Detect if ie10+ and edge is using inPrivate mode

This is an odd case scenario, but I would like to display a message that tells if indexedDB is not supported or if it is removed due to being in private mode (yes ie10+/edge remove indexedDB in private mode, crazy uh?).

I think found a way without doing crazy UA sniffing or documentMode hacks that I think could work.

if(!window.indexedDB && (window.PointerEvent || window.MSPointerEvent))
document.body.innerHTML = "Can't use indexedDB because you are in private mode"
else if(!window.indexedDB)
document.body.innerHTML = "Can't use indexedDB because you don't have it"
else
document.body.innerHTML = "woho"
// Other browser in private mode can block indexedb
// but the message gets handled from db.onerror instead

• IE/Edge is the only browser that removes indexedDB when using inPrivate mode..?
so this is a way to detect private mode, but then you have to figure out if it is ie10+ or edge.
• so ie10 was the latest browser with support for indexedDB
• and ie10+edge is the only browser that support pointerEvent [caniuse]

And I assume there is no other browser with support for pointerEvent and not having indexedDB at the same time that could yield wrong message.