Function preloadStylesheet

docs/index.js:17437–17451

(ownerDocument, key, preloadProps, state)

  });
}
function preloadStylesheet(ownerDocument, key, preloadProps, state) {
  ownerDocument.querySelector('link[rel="preload"][as="style"][' + key + "]")
    ? (state.loading = 1)
    : ((key = ownerDocument.createElement("link")),
      (state.preload = key),
      key.addEventListener("load", function () {
        return (state.loading |= 1);
      }),
      key.addEventListener("error", function () {
        return (state.loading |= 2);
      }),
      setInitialProperties(key, "link", preloadProps),
      markNodeAsHoistable(key),
      ownerDocument.head.appendChild(key));
}
function getScriptKey(src) {
  return '[src="' + escapeSelectorAttributeValueInsideDoubleQuotes(src) + '"]';
}