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Internet Explorer is Microsoft's venture into the Web Browser market. The initial version of Explorer was incarnated from Spyglass Mosaic which Microsoft licensed for a modest quarterly fee and a share of the non-Windows product revenues. As Microsoft decided to distribute Internet Explorer 'free of charge' with their Windows operating system, they were able to avoid most. IExplorer is a very, very useful tool for anyone with an iPod Touch, iPhone, or iPad; it will greatly increase the functionality of your machine, even if you only use it every once in awhile. 4.1.11 Nov 23th, 2017. 4.1.4 Oct 13th, 2017. 4.0.12 Mar 24th, 2017. 4.0.10.0 Oct 7th, 2016. 4.0.7.0 Sep 20th, 2016.
-->This functionality will not be implemented in any version ofMicrosoft Edge.
Web developers can also specify a document mode by includinginstructions in a meta element or HTTP response header:
Iexplorer 4 1 112
- Webpages that include a meta element (see [HTML5:2014])with an http-equivalent value of
X-UA-Compatible
. - Webpages that are served with an HTTP header named'X-UA-Compatible'.
If both of these instructions are sent, the developer'spreference (meta element) takes precedence over the web server setting(HTTP header).
For more information about how to control default renderingwith document modes, see 'META Tags and Locking in FutureCompatibility' at [MSDN-METATagsLocking].
The
X-UA-Compatible
valuedetermines Windows Internet Explorer's document as follows:X-UA-Compatible value | Document modes |
---|---|
IE=5 | Quirks Mode |
IE=7 | IE7 mode |
IE=8 | IE8 mode |
IE=9 | IE9 mode |
IE=10 | IE10 mode |
IE=11 | IE11 mode |
IE=edge | The highest supported document mode of the browser |
IE=EmulateIE7 | IE7 mode (if a valid <!DOCTYPE> declaration is present)Quirks Mode (otherwise) |
IE=EmulateIE8 | IE8 mode (if a valid <!DOCTYPE> declaration is present)Quirks Mode (otherwise) |
IE=EmulateIE9 | IE9 mode (if a valid <!DOCTYPE> declaration is present)Quirks Mode (otherwise) |
IE=EmulateIE10 | IE10 mode (if a valid <!DOCTYPE> declaration is present)Quirks Mode (otherwise) |
IE=EmulateIE11 | IE11 mode (if a valid <!DOCTYPE> declaration is present)Quirks Mode (otherwise) |
For example, in Windows Internet Explorer 8,
IE=9
, IE=Edge
, and IE=EmulateIE9
result in IE8 mode.Browser emulation modes are not document modes. Theyinstruct Internet Explorer about how to select a document mode when a valid
<!DOCTYPE>
declaration is included. Iexplorer 4 1 113
The following diagramshows how Internet Explorer determines the appropriate document mode based onthe meta element or HTTP header.