Static Image Export in plotly.js does not work for polar charts #1654

var d3 = Plotly.d3;
var img_jpg= d3.select('#jpg-export');
// Ploting the Graph
var trace={x:[3,9,8,10,4,6,5],y:[5,7,6,7,8,9,8],type:"scatter"};
var trace1={x:[3,4,1,6,8,9,5],y:[4,2,5,2,1,7,3],type:"scatter"};
var data = [trace,trace1];
var layout = {title : "Simple Javascript Graph"};
Plotly.plot(
  'plotly_div',
   data,
   layout)
// static image in jpg format
.then(
    function(gd)
     {
      Plotly.toImage(gd,{height:300,width:300})
         .then(
            function(url)
         {
             img_jpg.attr("src", url);
             return Plotly.toImage(gd,{format:'jpeg',height:400,width:400});
         }
         )
    });

var d3 = Plotly.d3;
var img_jpg= d3.select('#jpg-export');
// Ploting the Graph
var trace={t:[3,9,8,10,4,6,5],r:[5,7,6,7,8,9,8],type:"scatter"};
var trace1={t:[3,4,1,6,8,9,5],r:[4,2,5,2,1,7,3],type:"scatter"};
var data = [trace,trace1];
var layout = {title : "Simple Javascript Graph"};
Plotly.plot(
  'plotly_div',
   data,
   layout)
// static image in jpg format
.then(
    function(gd)
     {
      Plotly.toImage(gd,{height:300,width:300})
         .then(
            function(url)
         {
             img_jpg.attr("src", url);
             return Plotly.toImage(gd,{format:'jpeg',height:400,width:400});
         }
         )
    });