The HTML syntax is used by
an ActiveX object, and the XHTML tag is used by a binary behavior
object. Another option is to use the extension developed
by Perpetual Motion (http://perpetual-motion.com/) that works
with Firefox and supports both syntaxes, too. Future extensions
will be expected to support these syntaxes, so Web developers
will not have to treat how Information Cards are requested
based on the browser the user is running as a special case.
226 CardSpace Implementation
The following listings are examples of the HTML and XHTML
syntaxes. Both of these examples have the same meaning, and
result in the same behavior. To help keep the lines manageable,
the URIs used have been abbreviated. The ??¦ in each URI
is shorthand for "schemas.xmlsoap.org/ws/2005/05/identity",
so "http://.../issuer/self" actually represents
"http://schemas.xmlsoap.org/ws/2005/05/identity/
issuer/self".
The HTML extension, which calls the ActiveX object in Internet
Explorer, looks like this: