I am trying to save to a file, as a png image, an svg plot that was created with d3.js
. This code works fine on Chrome (saves the file to disk) but fails on Firefox 32. Any ideas why?
$(".savePNG").click (function() {
var svg = ($("#svgContainer")[0]).getElementsByTagName("svg")[0];
var svg_xml = (new XMLSerializer).serializeToString(svg); // extract the data as SVG text
var data_uri = "data:image/svg+xml;base64," + window.btoa(svg_xml);
var image = new Image;
image.src = data_uri;
image.onload = function()
{
var canvas = document.createElement("canvas");
canvas.width = image.width;
canvas.height = image.height;
var context = canvas.getContext("2d");
context.clearRect(0, 0, image.width, image.height);
context.drawImage(image, 0, 0);
var a = document.createElement("a");
a.download = "file.png";
a.href = canvas.toDataURL("image/png");
a.click ();
};
});
If it provides any clue console.log (svg_xml.length + " " + data_uri.length);
on Chrome returns 3501304 4668434 and on Firefox 3060753 4081030. So it would seem that Firefox is missing some data but I don't know what to make of it.
As suggested the .click()
method fails for firefox. But window.open(a.href, "_blank");
will work and open a new window with the image in it. You can right click to save it.
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