2.3.3.4.  Element extension

The extension element describes an extension that is required in order to run the application.

Properties

Name	Description	Required
version	The version attribute of an extension element specifies the version of the extension requested.	no
name	The name attribute of an extension element specifies the name of the extension.	no
href	The href attribute of an extension element specifies the location of the extension. The attribute defaults to eager.	yes