To add Caja capabilities into an OpenSocial gadget, we can
leverage the feature to include abilities in the gadget XML
specification. We do this by embedding a
Require statement for
the Caja feature within the
ModulePrefs of an OpenSocial gadget.
<ModulePrefs> <Require feature="caja" /> </ModulePrefs>
Caja is a standard feature available within Apache Shindig 1.1.