Vizceral doesn't show live metrics

[yuanbing]

Hi,

I've encountered a strange issue while playing around with Vizceral:

If I followed the example page (attached file: test.html.txt), I could see animation of metrics of connection.

But I followed the ES6 example (attached file: index.html.txt and index.js.txt), then I CANNOT see the animation of metrics at all. Instead I could only see the graph layout. (please refer to attached screenshot).

Could anyone shed some light on what I've done wrong?

Thanks a lot.

Bing

index.html.txt
test.html.txt
index.js.txt
sample_traffic.js.txt