Fix inline demo serialization (#592)
Fix inline demo serialization (#592)


customelements/v2,andymutton/v2,andymutton/v2,andymutton/v2,andymutton/v2,andymutton/beta,webcomponents/webcomponents.org,andymutton/beta,customelements/v2,andymutton/beta,customelements/v2,webcomponents/webcomponents.org,andymutton/beta,customelements/v2,webcomponents/webcomponents.org