Forcing Internet Explorer 9 to use standards document mode

html internet-explorer internet-explorer-9 quirks-mode
MaxRecursion picture MaxRecursion · Jun 11, 2012 · Viewed 143.3k times · Source

How can I force Internet Explorer 9 to use standards document mode? I built a website and I'm finding that IE9 uses quirks mode to render the website pages. But I want to use standards mode for rendering.

Answer

Jukka K. Korpela picture Jukka K. Korpela · Jun 11, 2012 
 <!doctype html>
 <meta http-equiv="X-UA-Compatible" content="IE=Edge">

This makes each version of IE use its standard mode, so IE 9 will use IE 9 standards mode. (If instead you wanted newer versions of IE to also specifically use IE 9 standards mode, you would replace Edge by 9. But it is difficult to see why you would want that.)

For explanations, see http://hsivonen.iki.fi/doctype/#ie8 (it looks rather messy, but that’s because IE is messy in its behaviors).

Related questions

Why does IE9 opens in Document Mode as IE7 standards?

When I open a webpage in IE9 with DOCTYPE as <!DOCTYPE html> It opens Document Mode as IE7 standards. I need default IE9 standards on opening the page. How to correct this document mode problem? A screenshot of …

Read More
How to target IE9 with new HTML5 Boilerplate?

I am trying to target a class for IE. However, since the boilerplate template has changed this no longer works.. .myclass { //do something } .ie7 .myclass { ///do something } This is what's in the new header of the boilerplate template. <!doctype …

Read More
IE 9 and IE 10 cannot enter text into input text boxes from time to time

There is a web page with an iframe inside. Sometimes, Input text box controls, inside the iframe, are locked/ freezed. Users cannot enter text into them. But the text box can be focused and not faded. There is no code …

Read More