LineString distanceTo Issues

[geographika]

I've been having some issues using the distanceTo function on linestring geometries. I'm not sure this is a misunderstanding on my part or problems in the OL library.

An example:

var feat1, feat2, wkt1, wkt2;
var wkt = new OpenLayers.Format.WKT();

wkt1 = 'LINESTRING(0 0, 10 0)';
wkt2 = 'LINESTRING(11 0, 20 0)';

feat1 = wkt.read(wkt1);
feat2 = wkt.read(wkt2);

var dist = feat1.geometry.distanceTo(feat2.geometry);
console.log(dist); // would expect this to be 1? In fact returns 0

In fact any start X for the second line with a Y of 0 returns a distance of 0.

Also the docs at http://dev.openlayers.org/releases/OpenLayers-2.13.1/doc/apidocs/files/OpenLayers/Geometry/LineString-js.html#OpenLayers.Geometry.LineString.distanceTo states that this function "Calculate the closest distance between two geometries (on the x-y plane)" - however it appears to simply find the distance between the two closest vertices of the line geometries?