mpvue Cannot read property 'createTextNode' of undefined

_20190123110953 我这边将mpvue开发的微信小程序迁移一版百度小程序,使用百度提供的迁移工具转换以后,出现错误: _20190123111259

Jan 23 '19 03:01 suiyang1714

这是按照百度转换流程做的，页面组件原封不动的移动

Jan 23 '19 03:01 suiyang1714

这里非mpvue问题，出问题的地方在 babel的core-js，这个包里面使用有一个有一个判断优先级调整一下就好原core-js内异常代码：

// Node.js
  if (isNode) {
    notify = function () {
      process.nextTick(flush);
    };
  // browsers with MutationObserver, except iOS Safari - https://github.com/zloirock/core-js/issues/339
  } else if (Observer && !(global.navigator && global.navigator.standalone)) {
    var toggle = true;
    var node = document.createTextNode('');
    new Observer(flush).observe(node, { characterData: true }); // eslint-disable-line no-new
    notify = function () {
      node.data = toggle = !toggle;
    };
  // environments with maybe non-completely correct, but existent Promise
  } else if (Promise && Promise.resolve) {
    // Promise.resolve without an argument throws an error in LG WebOS 2
    var promise = Promise.resolve(undefined);
    notify = function () {
      promise.then(flush);
    };
  // for other environments - macrotask based on:
  // - setImmediate
  // - MessageChannel
  // - window.postMessag
  // - onreadystatechange
  // - setTimeout
  } else {
    notify = function () {
      // strange IE + webpack dev server bug - use .call(global)
      macrotask.call(global, flush);
    };
  }

新core-js内代码：

if (isNode) {
    notify = function () {
      process.nextTick(flush);
    };
  // browsers with MutationObserver, except iOS Safari - https://github.com/zloirock/core-js/issues/339
  } else if (Promise && Promise.resolve) {
    // Promise.resolve without an argument throws an error in LG WebOS 2
    var promise = Promise.resolve(undefined);
    notify = function () {
      promise.then(flush);
    };
  // for other environments - macrotask based on:
  // - setImmediate
  // - MessageChannel
  // - window.postMessag
  // - onreadystatechange
  // - setTimeout
  } else if (Observer && !(global.navigator && global.navigator.standalone)) {
    var toggle = true;
    var node = document.createTextNode('');
    new Observer(flush).observe(node, { characterData: true }); // eslint-disable-line no-new
    notify = function () {
      node.data = toggle = !toggle;
    };
    // environments with maybe non-completely correct, but existent Promise
  } else {
    notify = function () {
      // strange IE + webpack dev server bug - use .call(global)
      macrotask.call(global, flush);
    };
  }