Parse WKT and zoom to polygon extent using openlayers

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I'm having trouble getting Openlayers to zoom to a polygon extent using "map.zoomToExtent(vector.getDataExtent());" The object parsed as WKT loads and displays fine but I want to zoom to the polygon extent. I have a bunch of these to do, so manually setting it is not an option.

This is an adaptation of the standard WKT parsing example.

WKT example





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