// configuration for siren viewer

var material_face = new THREE.MeshPhongMaterial({color: 'slategray'});
material_face.side = THEE.DoubleSide;
var material_edge = new THREE.LineBasicMaterial({linewidth: 2, color: 'red'});


// configuration for siren viewer

var material_face = new THREE.MeshPhongMaterial({color: 'slategray'});
material_face.side = THREE.DoubleSide;
var material_edge = new THREE.LineBasicMaterial({linewidth: 2, color: 'red'});


Fix a typo.