Я использую кукловодов в своем проекте React с Webpack и babel.Я пишу этот простой код в своем компоненте и получаю следующую ошибку:
async goToPage() {
const browser = await puppeteer.launch();
const page = await browser.newPage();
await page.goto(this.state.url);
}
Когда я запускаю npm start, я не получаю никакой ошибки в командной строке.Но я получаю эту ошибку в консоли Google Chrome.Я думаю, что в webpack.config.js есть ошибка, но я много искал и не могу ее исправить.Пожалуйста, проверьте следующую информацию и помогите решить эту проблему.
Ошибка:
Uncaught ReferenceError: ws is not defined
at eval (external_"ws":1)
at Object.ws (bundle.js:6941)
at __webpack_require__ (bundle.js:725)
at fn (bundle.js:102)
at eval (WebSocketTransport.js:16)
at Object../node_modules/puppeteer/lib/WebSocketTransport.js (bundle.js:4655)
at __webpack_require__ (bundle.js:725)
at fn (bundle.js:102)
at Object.eval (Launcher.js:27)
at eval (Launcher.js:407)
package.json
{
"name": "scrapper",
"version": "0.1.0",
"private": true,
"dependencies": {
"@blueprintjs/core": "^3.9.0",
"axios": "^0.18.0",
"babel-plugin-emotion": "^10.0.0",
"bluebird": "^3.5.3",
"feedparser": "^2.2.9",
"file-loader": "^2.0.0",
"lodash": "^4.17.11",
"promise": "^8.0.2",
"prop-types": "^15.6.2",
"puppeteer": "^1.11.0",
"query-string": "^6.2.0",
"react-grid-layout": "^0.16.6",
"react-redux": "^5.1.1",
"redux": "^4.0.1",
"redux-promise": "^0.6.0",
"url-loader": "^1.1.2",
"ws": "^6.1.2"
},
"scripts": {
"start": "webpack-dev-server --config ./webpack.config.js --mode development",
"build": "webpack --mode production",
"start:react": "react-scripts start",
"build:react": "react-scripts build",
"test": "react-scripts test",
"eject": "react-scripts eject"
},
"eslintConfig": {
"extends": "react-app"
},
"browserslist": [
">0.2%",
"not dead",
"not ie <= 11",
"not op_mini all"
],
"devDependencies": {
"@babel/core": "^7.1.6",
"@babel/plugin-proposal-class-properties": "^7.1.0",
"@babel/preset-env": "^7.1.6",
"@babel/preset-react": "^7.0.0",
"babel-loader": "^8.0.4",
"css-loader": "^1.0.1",
"html-loader": "^0.5.5",
"html-webpack-plugin": "^3.2.0",
"node-sass": "^4.10.0",
"react": "^16.6.3",
"react-dom": "^16.6.3",
"sass-loader": "^7.1.0",
"style-loader": "^0.23.1",
"webpack": "^4.26.0",
"webpack-cli": "^3.1.2",
"webpack-dev-server": "^3.1.10"
}
}
webpack.config.js
const HtmlWebPackPlugin = require("html-webpack-plugin");
const webpack = require("webpack");
module.exports = {
entry: "./src/index.js",
module: {
rules: [
{
test: /\.js$/,
exclude: /node_modules/,
use: {
loader: "babel-loader"
}
},
{
test: /\.(s*)css$/,
use: [
"style-loader", // creates style nodes from JS strings
"css-loader", // translates CSS into CommonJS
"sass-loader" // compiles Sass to CSS, using Node Sass by default
]
},
{
test: /\.(woff|woff2)$/,
use: {
loader: "url-loader",
options: {
name: "fonts/[hash].[ext]",
limit: 5000,
mimetype: "application/font-woff"
}
}
},
{
test: /\.(ttf|eot|svg)$/,
use: {
loader: "file-loader",
options: {
name: "fonts/[hash].[ext]"
}
}
}
]
},
resolve: {
extensions: ["*", ".js", ".json"]
},
output: {
path: __dirname + "/dist",
publicPath: "/",
filename: "bundle.js"
},
plugins: [
new webpack.HotModuleReplacementPlugin(),
new HtmlWebPackPlugin({
template: "./dist/index.html"
})
],
devServer: {
contentBase: "./dist",
hot: true,
port: 3000,
historyApiFallback: true
},
externals: ['ws']
};
.babelrc
{
"presets": ["@babel/preset-env", "@babel/preset-react"],
"plugins": ["@babel/plugin-proposal-class-properties", "emotion"]
}