See eg: ```js Plotly.newPlot(gd, [{y: [1,2,3]}, {y: [10, 30, 20], yaxis: 'y2'}], {yaxis2: {side: 'right', overlaying: 'y'}} ); Plotly.deleteTraces(gd, [1]); ```  reported in https://github.com/plotly/react-plotly.js/issues/45