superset-frontend/packages/superset-ui-core/src/dimension/svg/createHiddenSvgNode.ts

import { SVG_NS } from './constants';

export default function createHiddenSvgNode() {
  const svgNode = document.createElementNS(SVG_NS, 'svg');
  svgNode.style.position = 'absolute'; // so it won't disrupt page layout
  svgNode.style.top = '-100%';
  svgNode.style.left = '-100%';
  svgNode.style.width = '0'; // no dimensions
  svgNode.style.height = '0';
  svgNode.style.opacity = '0'; // not visible
  svgNode.style.pointerEvents = 'none'; // won't capture mouse events

  return svgNode;
}