title: Too many active WebGL contexts. Oldest context will be lost
body: <p>I hava a proplem while use plot_ly 10 times to create 10 surface plots. I get waring:Too many active WebGL contexts. Oldest context will be lost, so plot not show but the first 9 plot can show normally.
  warning details：
  plotly-latest.min.js:19 WARNING: Too many active WebGL contexts. Oldest context will be lost.
  plotly-latest.min.js:36 lost context</p>
  
  <p>Is there a way workaround this proplem?</p>