GeoJson Strokewidth is not work with clampToGround = true

CesiumJS
1

This is my code:

var viewer = new Cesium.Viewer("cesiumContainer");
Cesium.GeoJsonDataSource.clampToGround  = true
viewer.scene.globe.depthTestAgainstTerrain = true
//Example 1: Load with default styling.
Sandcastle.addDefaultToolbarButton("Default styling", function () {
  viewer.dataSources.add(
    Cesium.GeoJsonDataSource.load(
      "../SampleData/ne_10m_us_states.topojson",
      {
        stroke: Cesium.Color.RED,
        strokeWidth: 1
      }
    )
  );
});

Sancastle Link

2

Entity geometry outlines are currently unsupported on terrain. Outlines are automatically disabled with clampToGround on. There is a discussion on this in our Github repository: