The draw.io code invoked on a download as SVG

drawioClientSVG

        else if (format == 'svg')
        {
        	var bg = this.editor.graph.background;
        	
        	if (bg == 'none')
        	{
        		bg = null;
        	}
        	
        	// JPG does not support transparent backgrounds
        	if (bg == null && format == 'jpg')
        	{
        		bg = '#ffffff';
        	}

        	// Sets or disables alternate text for foreignObjects. Disabling is needed
        	// because PhantomJS seems to ignore switch statements and paint all text.
        	mxSvgCanvas2D.prototype.foAltText = (format == 'svg') ? '[Not supported by viewer]' : null;
        	
			var svgRoot = this.editor.graph.getSvg(bg, null, null, (format == 'pdf' && this.editor.graph.pageVisible));
			var svg = mxUtils.getXml(svgRoot);
			
			if (svg.length <= MAX_REQUEST_SIZE)
			{
				if (format == 'svg')
				{
		        	if (urlParams['save'] == 'local' || this.isOfflineApp() || mxClient.IS_IOS)
		        	{
		        		this.saveLocalFile(svg, filename, 'image/svg+xml');
		        	}
		        	else
		        	{
		        		var param = (typeof(Zlib) === 'undefined') ? '&xml=' + encodeURIComponent(svg) :
		        			'&data=' + encodeURIComponent(this.editor.compress(svg));
		        		new mxXmlRequest(SAVE_URL, 'filename=' + encodeURIComponent(filename) +
		        			'&format=' + format + param).simulate(document, '_blank');
		        	}
				}
				else
				{
					var w = parseInt(svgRoot.getAttribute('width'));
					var h = parseInt(svgRoot.getAttribute('height'));
	
					if (w > 0 && h > 0 && w * h < MAX_AREA)
					{
						var bgParam = (bg != null) ? '&bg=' + bg : '';
		        		var param = (typeof(Zlib) === 'undefined') ? '&svg=' + encodeURIComponent(svg) :
		        			'&svgdata=' + encodeURIComponent(this.editor.compress(svg));
						new mxXmlRequest(EXPORT_URL, 'filename=' + encodeURIComponent(filename) +
							'&format=' + format + bgParam + '&w=' + w + '&h=' + h + param).
							simulate(document, '_blank');
					}
				}
			}
			else
			{
				mxUtils.alert(mxResources.get('drawingTooLarge'));
				mxUtils.popup(svg);
			}
        }