message: vdom: match exact word: id and class in props
diff: @@ -189,7 +189,7 @@ function updateProps(element: Element, props: {}, isSvg) {
  } else {
  element.setAttributeNS('http://www.w3.org/1999/xlink', xname, value);
  }
  - } else if (/id|class|role|-/g.test(name) || isSvg) {
  + } else if (/^id$|^class$|^role|-/g.test(name) || isSvg) {
  if (element.getAttribute(name) !== value) {
  if (value) element.setAttribute(name, value);
  else element.removeAttribute(name);
  