[]发布为微信小游戏，加载字体失败

错误信息提示，简单demo见附件：(unknown) gameThirdScriptError
xml.getElementsByTagName is not a function
TypeError: xml.getElementsByTagName is not a function
    at BitmapFont.__proto.parseFont (http://127.0.0.1:53804/game/code.js:803:17)
    at Loader.__proto.onLoaded (http://127.0.0.1:53804/game/code.js:12700:11)
    at HTMLImage.onload (http://127.0.0.1:53804/game/code.js:21213:15)
    at Image._source._source.onload (http://127.0.0.1:53804/game/code.js:20175:11)