vue+ydui使用iconfont时图标不显示

本来我是这样定义图标字体的：（省略woff字体编码）

@font-face {font-family: YDUI-ICONS;
  src: url('../../fonts/iconfont/iconfont.eot?t=1542201734648');
  src: url('../../fonts/iconfont/iconfont.eot?t=1542201734648#iefix') format('embedded-opentype'),
  url('data:application/x-font-woff;charset=utf-8;base64,...) format('woff'),
  url('../../fonts/iconfont/iconfont.ttf?t=1542201734648') format('truetype'),
  url('../../fonts/iconfont/iconfont.svg?t=1542201734648#iconfont') format('svg');
}

而后项目的图标一直是小方框，百思不得其解：

 

而后把woff格式的字体去掉，就能够了：

@font-face {font-family: YDUI-ICONS;
  src: url('../../fonts/iconfont/iconfont.eot?t=1542201734648');
  src: url('../../fonts/iconfont/iconfont.eot?t=1542201734648#iefix') format('embedded-opentype'),
  url('../../fonts/iconfont/iconfont.ttf?t=1542201734648') format('truetype'),
  url('../../fonts/iconfont/iconfont.svg?t=1542201734648#iconfont') format('svg');
}

效果：