GSA: microdata gets truncated

Question

I'm feeding the data of into Google Search Appliance. My feed contains HTML documents enchanced with Microdata from schema.org (specifically this).

To my surprise:

1. the search results aren't any different to the ones I receive without microdata enhancement in place,
2. while using test tool, I'm seeing that GSA cuts the Microdata from the markup.

Questions:

1. How to improve GSA search results?
2. Why would GSA cut the Microdata from the markup? Should I be concerned about it?

Answer 1

The GSA does not support those microdata. It typically only supports meta tags under the format <meta name="category" content="computer"/>