LaaVel+II+AXIOS=“承诺是未定义的”。

我有以下代码使用Axios在LaaLeVE中运行Ajax请求:

 axios.post('Ajax/upload',{key:this.key})
            .then(function(response)
            {
                 console.log(response);
            }).catch(function(response) {
                console.log(response)
            });

它在Chrome中运行良好,但在Internet Explorer中,我只得到以下错误:

Promise is udefined.

在app.js文件中,断点设置在:

  var chain = [dispatchRequest, undefined];
  var promise = Promise.resolve(config);

{
    "private": true,
    "scripts": {
        "dev": "npm run development",
        "development": "cross-env NODE_ENV=development node_modules/webpack/bin/webpack.js --progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js",
        "watch": "cross-env NODE_ENV=development node_modules/webpack/bin/webpack.js --watch --progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js",
        "watch-poll": "npm run watch -- --watch-poll",
        "hot": "cross-env NODE_ENV=development node_modules/webpack-dev-server/bin/webpack-dev-server.js --inline --hot --config=node_modules/laravel-mix/setup/webpack.config.js",
        "prod": "npm run production",
        "production": "cross-env NODE_ENV=production node_modules/webpack/bin/webpack.js --no-progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js"
    },
    "devDependencies": {
        "axios": "0.18",
        "bootstrap": "4.0.0",
        "cross-env": "^5.1",
        "jquery": "3.3.1",
        "laravel-mix": "^1.0",
        "noty": "3.1.4",
        "pace-js": "1.0.2",
        "vue": "^2.5.7"
    },
    "dependencies": {
        "popper.js": "^1.14.4"
    }
}

为了让Axios在Internet Explorer中工作,我需要添加什么软件包吗?或者还有其他的解决办法吗?

谢谢你的帮助!