message: fix: properly render value on <progress> in IE/Edge
  fix
diff: /* @flow */
  -import { isIE9 } from 'core/util/env'
  +import { isIE9, isEdge } from 'core/util/env'
  import {
  extend,
  @@ -42,8 +42,9 @@ function updateAttrs (oldVnode: VNodeWithData, vnode: VNodeWithData) {
  }
  }
  // #4391: in IE9, setting type can reset value for input[type=radio]
  + // #6666: IE/Edge forces progress value down to 1 before setting a max
  /* istanbul ignore if */
  - if (isIE9 && attrs.value !== oldAttrs.value) {
  + if ((isIE9 || isEdge) && attrs.value !== oldAttrs.value) {
  setAttr(elm, 'value', attrs.value)
  }
  for (key in oldAttrs) {
  