https://www.ejemplos.co/wp-content/themes/ejemplos_v5/js/svg-inline.js?ver=1.0.2

1function loadSvg(el) {
2  if (typeof SVGRect === undefined && !el) return;
3  var ajax = new XMLHttpRequest();
4  ajax.open("GET", el.src, true);
5  ajax.send();
6
7  /*Append the SVG to the el*/
8
9  ajax.onload = function (e) {
10    let svgContainer = document.createElement('span');
11    svgContainer.className = el.className;
12    svgContainer.className += ' svg-inlined';
13    svgContainer.innerHTML = ajax.responseText;
14    el.parentNode.insertBefore(svgContainer, el);
15    el.remove();
16  };
17}
18function fetchSvgInline(image) {
19  fetch(image.src).then(response => response.text()).then(response => {
20    const svgStr = response;
21    if (svgStr.indexOf('<svg') === -1) {
22      return;
23    }
24    const span = document.createElement('span');
25    span.className = image.className + ' svg-inlined';
26    span.innerHTML = svgStr;
27    const inlineSvg = span.querySelector('svg');
28    inlineSvg.setAttribute('aria-label', image.alt || '');
29    // inlineSvg.setAttribute('class', image.className); // IE doesn't support classList on SVGs
30    inlineSvg.setAttribute('focusable', false);
31    inlineSvg.setAttribute('role', 'img');
32    if (image.height) {
33      inlineSvg.setAttribute('height', image.height);
34    }
35    if (image.width) {
36      inlineSvg.setAttribute('width', image.width);
37    }
38    image.parentNode.replaceChild(span, image);
39  }).catch(() => {
40    image.classList.add('not-inline');
41    console.log('image not found');
42  });
43}
44;
45document.addEventListener("DOMContentLoaded", e => {
46  for (el of document.querySelectorAll('img.custom-logo[src*=".svg"], img.to-inline')) {
47    fetchSvgInline(el);
48  }
49});