Fix resize handling.
Fix resize handling.

openseadragon/openseadragon,rdlester/openseadragon,LarissaSmith/openseadragon,avandecreme/openseadragon,avandecreme/openseadragon,jmnetus/openseadragon,rdlester/openseadragon,msalsbery/openseadragon,seanich/openseadragon,jmnetus/openseadragon,seanich/openseadragon,openseadragon/openseadragon,msalsbery/openseadragon,LarissaSmith/openseadragon