我有
样式.css
section {
display: flex;
background: url('./bg.svg');
}
脚本.mjs
import css from './style.css'
console.log(css)
webpack.config.mjs
import path from 'path'
import url from 'url';
import autoprefixer from 'autoprefixer'
const __dirname = path.dirname(url.fileURLToPath(import.meta.url))
export default {
mode: 'production',
context: path.resolve(__dirname),
entry: path.resolve(__dirname, 'script.mjs'),
output: {
path: path.resolve(__dirname, 'build'),
filename: `[name].js`,
},
module: {
rules: [
{
test: /\.(svg|png|jpg|jpeg)$/,
type: 'asset/inline',
},
{
test: /\.css$/,
type: 'asset/source',
use: [
'css-loader',
{
loader: 'postcss-loader',
options: {
plugins: [
autoprefixer,
],
},
},
],
},
],
},
}
包.json
{
"scripts": {
"build": "webpack --config webpack.config.mjs"
},
"devDependencies": {
"autoprefixer": "~10.2.5",
"css-loader": "~5.2.4",
"postcss-loader": "~5.2.0",
"webpack": "~5.36.2",
"webpack-cli": "~4.6.0"
}
}
预期的 console.log 输出
display: -webkit-box;display: -ms-flexbox;display: flex;background: url('data:image/svg+xml;utf8,...');
实际结果
当 postcss-loader 存在时,我得到了构建错误:
PostCSS Loader has been initialized using an options object that does not match the API schema"
当 webpack.config.mjs 中没有 postcss-loader 时,我在 console.log 中得到了错误的输出:
// Imports
import ___CSS_LOADER_API_IMPORT___ from "./node_modules/css-loader/dist/runtime/api.js";
import ___CSS_LOADER_GET_URL_IMPORT___ from "./node_modules/css-loader/dist/runtime/getUrl.js";
import ___CSS_LOADER_URL_IMPORT_0___ from "./bg.svg";
var ___CSS_LOADER_EXPORT___ = ___CSS_LOADER_API_IMPORT___(function(i){return i[1]});
var ___CSS_LOADER_URL_REPLACEMENT_0___ = ___CSS_LOADER_GET_URL_IMPORT___(___CSS_LOADER_URL_IMPORT_0___);
// Module
___CSS_LOADER_EXPORT___.push([module.id, "section {\n\tdisplay: flex;\n\tbackground: url(" + ___CSS_LOADER_URL_REPLACEMENT_0___ + ");\n}", ""]);
// Exports
export default ___CSS_LOADER_EXPORT___;