Plotly.js - How do I make two y-axes associated with a single x-axis?

plotly.js
1

How do I make two y-axes associated with a single x-axis? In the image we see that each y-axis has its own x-axis. I already used anchor = ‘x’ in the yaxis2 layout, but nothing has changed.

erro%20plotly
erro plotly.png789×602 21.5 KB

Below the layout used:

var layout = {
    title: 'Coeficientes',
    showlegend: true,
    legend: {
        "orientation": "h"
    },
    width: 800,
    height: 580,
    autosize: true,
    margin: {
        l: 50, r: 70, b: 50, t: 50, pad: 2
    },
    xaxis: {title: 'Ângulo [graus]'},
    yaxis: {title: '[kN/(m/s)²]'},
    yaxis2 = {
        title: '[kN.m/(m/s)²]',
        overlaying: 'y',
        side: 'right'
    }
}