Url of chunk filenames are not `urlencoded`

Expected behaviour

URI of files in emitted HTML should be "urlencoded".

Current behaviour

URI of files in emitted to HTML as is, with no visible encoding.

Config

const HtmlWebpackPlugin = require("html-webpack-plugin");

module.exports = {
    context: __dirname,
    entry: {
        "app+foo": "./index.js",
    },
    plugins: [
        new HtmlWebpackPlugin()
    ]
}

Expected that emitted <script> tag contains src="app%2bfoo.js".
But, we see src="app+foo.js", which points at "app foo.js" (space inside).

Relevant Links

Repro: https://github.com/zbigg/hwp-urlencode

Environment

html-webpack-plugin@3.2.0 
webpack@4.38.0

Hey @zbigg thanks for your feedback!

This is the part where the asset path is build up and probably the place where we could also encode:

html-webpack-plugin/index.js

Line 607 in 34d8aa5

const entryPointPublicPath = publicPath + chunkFile;

We should also try how this behaves for output configurations which contain a slash:

 output: {
       filename: 'folder/prefix+[name].bundle.js'
},

Do you have time to prepare a pull request?

@jantimon With such good hint, it should be easy to add. I'll look into making PR for this.