ECharts Y Axis Axis Line not rendering?

Question

In this Angular ECharts demo the Y Axis Axis line is not rendering, and I have it configured like this:

       axisLine: {
          lineStyle: {
            type: 'solid',
            color: 'black',
            width: 4,
          },
        },

Thoughts?

Update

I fixed the Stackblitz per the suggestion in the comments, so if you look at it you can see that it renders the Y Axis line when show: true is set.