Avoid converting unicode to str when indexing (#567)
Avoid converting unicode to str when indexing (#567)


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