Why does IE9 opens in Document Mode as IE7 standards?

Question

When I open a webpage in IE9 with DOCTYPE as

It opens Document Mode as IE7 standards.

I need default IE9 stan

Answer 1

Try this answer: https://stackoverflow.com/a/13524518/1679310.

Summary, give the IE browser more information in the meta tag:

Edit Note: As Olly Hodgson mentioned, the proper option is IE=edge, as currently stated in the above snippet. Below is the original, also working version: