This is an extension plugin for the webpack plugin html-webpack-plugin.
It automatically adds the media attribute to generated <link> HTML elements, inferred from the CSS filename according to the pattern media_{base64MediaString}:
style.media_KG1pbi13aWR0aDogNzAwcHgpLCBoYW5kaGVsZCBhbmQgKG9yaWVudGF0aW9uOiBsYW5kc2NhcGUp.css
will be injected into the HTML template as:
<link src="styles.media_KG1pbi13aWR0aDogNzAwcHgpLCBoYW5kaGVsZCBhbmQgKG9yaWVudGF0aW9uOiBsYW5kc2NhcGUp.css" rel="stylesheet" media="(min-width: 700px), handheld and (orientation: landscape)" />
This is useful for print stylesheets or desktop/mobile-specific styles that the browser should only load depending on the @media match.
You must be running webpack on node 4.x or higher
Install the plugin with npm:
$ npm install --save-dev link-media-html-webpack-pluginLoad the plugin
const LinkMediaHtmlWebpackPlugin = require('link-media-html-webpack-plugin');and add it to your webpack config as follows:
plugins: [
new HtmlWebpackPlugin(),
new LinkMediaHtmlWebpackPlugin(),
]you'll probably want to use this in conjunction with extract-text-webpack-plugin to split up the loaded assets so the browser can do its thing. Here's a sample webpack 2.x config:
const path = require('path');
const webpack = require('webpack');
const HTMLPlugin = require('html-webpack-plugin');
const LinkMediaHTMLPlugin = require('link-media-html-webpack-plugin');
const ExtractPlugin = require('extract-text-webpack-plugin');
// a utility provided by this plugin for easily forming the requisite filename syntax
const getMediaFilename = require('link-media-html-webpack-plugin/get-media-filename');
const getFilePath = (filename) => path.join(__dirname, 'src', filename);
const mainStyleExtractor = new ExtractPlugin('style.css');
const printStyleExtractor = new ExtractPlugin(getMediaFilename(getFilePath('style.print.css')));
webpack({
entry: getFilePath('entry.js'),
module: {
loaders: [
{
test: /print\.css$/,
use: printStyleExtractor.extract('css-loader'),
}, {
test: /\.css$/,
exclude: /print\.css$/,
use: mainStyleExtractor.extract('css-loader'),
},
],
},
output: {
path: OUTPUT_DIR,
},
plugins: [
mainStyleExtractor,
printStyleExtractor,
new HTMLPlugin({
minify: {
collapseWhitespace: true,
},
}),
new LinkMediaHTMLPlugin(),
],
});
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