SVG as billboard's src doesn't work since Cesium 1.43

1. A concise explanation of the problem you're experiencing.
Until Cesium 1.43 I was able to set billboard's source to SVG.
Now I get an error:
Error loading image for billboard: [object Event]

I'm using latest Chrome v65.

2. A minimal code example. If you've found a bug, this helps us reproduce and repair it.

var billboards = scene.primitives.add(new Cesium.BillboardCollection());
    position : Cesium.Cartesian3.fromDegrees(-75.59777, 40.03883, 150000),
    image : ‘

3. Context. Why do you need to do this? We might know a better way to accomplish your goal.

I need to draw display SVG for an entity.

4. The Cesium version you're using, your operating system and browser.
Windows 7 & Windows 10, Cesium 1.43, Chrome 65

Look in the network tab, it seems like the response has some headers to prevent the image from being embedded like `

1; mode=block`.

Can you download the image and serve it yourself?



It is not about XSS.
I try to load SVG as data-uri (which means it's not hosted anywhere).
This is an example to code that doesn't work since version 1.43:

        position : Cesium.Cartesian3.fromDegrees(-75.59777, 40.03883),
        billboard :{
            image: 'data:image/svg+xml;utf-8,<svg xmlns="" width="100" height="100"> <rect x="0" y="0" height="100" width="100" style="stroke:#ff0000; fill: #0000ff"/> </svg>'

Thank you!