/* SPDX-License-Identifier: CC0-1.0

Replaces SVG images with an empty/transparent SVG to force the browser
to redraw it when the system preferred color scheme changes.

*/

function isChromium()
{
  return ((navigator.userAgentData && navigator.userAgentData.brands && navigator.userAgentData.brands.some(function(brand) {return brand.brand == 'Chromium'}) ) ||navigator.userAgent.includes('Chromium') || navigator.userAgent.includes('Chrome'));
}

if (isChromium)
{
  window.matchMedia('(prefers-color-scheme: dark)').addEventListener('change', function (ev)
  {
    document.querySelectorAll('img[src$=".svg"]').forEach(function (img_element)
    {
      var source = img_element.src;
      img_element.src = 'data:image/svg+xml,%3Csvg/%3E';
      setTimeout(function()
      {
        img_element.src = source;
      }, 0);
    });
  });
}