HTML Webpack Injector Plugin

Plugin that simplifies injection of chunks into head and body using HtmlWebpackPlugin (with ability to provide async/defer)

Installation

  npm i --save-dev html-webpack-injector

  yarn add --dev html-webpack-injector

This is a webpack plugin that simplifies injection of chunks in head and body tags of HTML files using HtmlWebpackPlugin to serve your webpack bundles. This is especially useful when you want to inject some chunks to head and some chunks to body using HtmlWebpackPlugin.

Usage

Suppose you want have 2 chunks that you want to inject in the html document using HtmlWebpackPlugin. If you want to inject one chunk in head and one chunk in body of the same html document.

webpack.config.js

const HtmlWebpackPlugin = require('html-webpack-plugin');
const HtmlWebpackInjector = require('html-webpack-injector');
 
module.exports = {
  entry: {
    index: "./index.ts",
    index_head: "./index.css" // add "_head" at the end to inject in head.
  },
  output: {
    path: "./dist",
    filename: "[name].bundle.js"
  },
  plugins: [
    new HtmlWebpackPlugin({
      template: "./index.html",
      filename: "./dist/index.html",
      chunks: ["index", "index_head"]
    }),
    new HtmlWebpackInjector()      // Initialize plugin
  ]
}

This will generate a file dist/index.html containing the following

<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <title>Archit's App</title>
    <script type="text/javascript" src="index_head.bundle.js"></script></head>
  </head>
  <body>
    <script src="index_bundle.js"></script> 
  </body>
</html>

You have to add _head in the entry point chunk name and it will be automatically injected in the head.

Provide Async Defer (Optional)

You can specify scripts to be async or defer by adding additional chunksConfig option.

plugins: [
   new HtmlWebpackPlugin({
     template: "./index.html",
     filename: "./dist/index.html",
     chunks: ["index", "index_head"],
     chunksConfig: {             // Added option
       async: ["index_head"],    
       defer: ["index"]
     }
   }),
   new HtmlWebpackInjector()     
 ]