Why .html() doesn't work with SVG selectors using jquery ?
As far as I can recall jQuery's .html() makes use of innerHTML which is meant for html, not svg. SVG's are xml documents, so you can use XMLSerializer()
var svg = document.getElementById('svg_root'); // or whatever you call itvar serializer = new XMLSerializer();var str = serializer.serializeToString(svg);
For the problem you are not getting your svg content,
If only one svg chart is on page then use:
$('svg').html();and if more than present then please see there is a div of highcharts_container because they create that svg charts. If you are using them.
Then use:
$('id of that div').html();