A Windows 8.x Store app is a new type of application that runs on Windows 8 devices. To find out more about Windows 8.x Store apps, see What's a Windows Store app?
Standards mode (the mode used in all versions of Internet Explorer up to Internet Explorer 11 when there is a
<!doctype> directive) supports a different set of elements than quirks mode (the mode used when there is no
<!doctype> directive). For more information about versioning, see Defining Document Compatibility.
The table that follows shows the Internet Explorer document modes (and Store apps representing Windows 8.x Store and Windows Phone Store) that support specific language elements. Document modes that support a given element are shown with the letter Y, and document modes that do not support a given element are shown with the letter N.
Microsoft Edge (Edge browser in Windows 10) does not include support for legacy document modes. Support for Windows Phone Store apps starts with Windows Phone 8.1. Experimental features (about:flags) are indicated by "Exp."
The table contains summary info. For more specific information, see the documentation for the language element.
* Supports DOM objects but not user-defined objects. The
configurable attributes can be specified, but they are not used.