最近的webpack版本不支持IE8。我已经尝试了1.12.12版本(我认为这是最后一个支持IE8的版本),但仍然会从无法模拟的
Object.defineProperty
中得到错误。
https://github.com/webpack/webpack/issues/2085
什么是最后一个支持IE8的webpack版本?它是否能够使用ES6模块?webpack.config.js:
var webpack = require("webpack");
var es3ifyPlugin = require('es3ify-webpack-plugin');
var productionPlugin = new webpack.DefinePlugin({
'process.env': {
'NODE_ENV': JSON.stringify('production')
}
});
var devPlugin = new webpack.DefinePlugin({
"process.env": {
NODE_ENV: JSON.stringify("dev")
}
});
module.exports = {
entry: {
assessment: "./src/aaa/app.js"
},
//devtool: "source-map",
output: {
path: "../AAA/wwwroot/js",
filename: "[name].bundle.js",
publicPath: "/"
},
resolve: {
extensions: ["", ".js"]
},
module: {
preLoaders: [
{
test: /\.js$/,
loader: "eslint-loader",
exclude: "node_modules"
}
],
loaders: [
{
test: /\.js$/,
exclude: /node_modules/,
loader: "babel-loader"
},
{
// todo: move less compiling to web project
test: /\.less$/,
loader: "style-loader!css-loader!less-loader",
exclude: "node_modules"
},
]
},
devServer: {
historyApiFallback: true,
inline: true,
proxy: {
"/api": {
"target": {
host: "localhost",
protocol: "http:",
port: "58211",
},
changeOrigin: true,
pathRewrite: { "^/api": "" }
}
},
publicPath: "/assets/"
},
plugins: [
new es3ifyPlugin(),
new webpack.optimize.CommonsChunkPlugin({
name: "vendor",
minChunks: isExternal
}),
productionPlugin
//devPlugin
]
}
function isExternal(module) {
var userRequest = module.userRequest;
if (typeof userRequest !== "string") {
return false;
}
return userRequest.indexOf("node_modules") >= 0;
}
转译后的代码如下:
exports.test = '123';
webpackJsonp([1, 0], [
function (module, exports, __webpack_require__) {
'use strict';
var _imported = __webpack_require__(1);
alert('test ' + _imported.test);
function(module, exports) {
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
var test = exports.test = 123;
}
]);
alert("Hello world");
错误是SCRIPT445:对象不支持这个操作sockjs.min.js(3,13318)
。我相当确定这是Object.defineProperty
失败。 - Tom