Invalid type of data warning on validator

When using the validator at https://webmaster.yandex.com/microtest.xml to test, I get this error -

WARNING: the field http://schema.org/url contains an invalid type of data . Permitted types of data http://schema.org/URL

The reason is that in schemaorg_entity_view() the attributes is set to $attributes['resource'] when it's displaying the URL to the entity content in the hidden field and the 'resource' property does not show as an allowed property on http://schema.org/URL

Also, I'm wondering, is it not better practice to have the full url displayed here rather than just the path?

Patch coming up for both.