download svg from html svg view as document

svg.js

const svg = document.getElementById('svg_null');

// Get the XML content of the SVG
const svgData = new XMLSerializer().serializeToString(svg);

// Create a new Blob object from the SVG data
const blob = new Blob([svgData], { type: 'image/svg+xml;charset=utf-8' });

// Create a new URL object from the Blob
const url = URL.createObjectURL(blob);

// Create a new link element and set its properties
const link = document.createElement('a');
link.href = url;
link.download = 'image.svg';

// Click the link to download the file
link.click();