This is a webpack loader for Polymer applications and components. It has a built in module that will load your application components at runtime with the use of importNode.

{
  test: /\.html$/,  
  includes: Array (optional),
  excludes: RegEx (optional),
  options: {
    ignoreLinks: Array (optional),
    ignoreLinksFromPartialMatches: Array (optional),
    ignorePathReWrite: Array (optional)
  },
  loader: 'polymer-webpack-loader'
},

Directories that contain your web components. This will allow you to control where the loader can access files to process. WARNING: If this property exists the loader will only process files that have their parent directory listed. So if you have <link> in your components to other directories they MUST be included in this Array.

A regular expression for files that the loader should exclude. NOTE: Files imported through a <link> will not be excluded by this property. See Options.ignoreLinks.

An array of paths to be ignored when dynamically imported. When the component loader comes across a <link> in your components it dynamically imports the value of href attribute.

An array of paths to be ignored when dynamically imported based on match of string anywhere within the path. When the component loader comes across a <link> in your components it dynamically imports the value of href attribute.

Paths the loader will respect as is. In order to properly import certain paths, checks are made to ensure the path is picked up correctly by Webpack. Paths matching a value in the Array will be imported as is, you may have aliases or just want the loader to respect the path.

Depending on how you configure the HtmlWebpackPlugin you may encounter conflicts with the polymer-webpack-loader.

Example:

{
  test: /\.html$/,
  loader: 'html-loader',
  include: [
    path.resolve(__dirname, './index.html'),
  ],
},
{
  test: /\.html$/,  
  loader: 'polymer-webpack-loader'
}

This would expose your index.html file to the polymer-webpack-loader based on the process used by the html-loader. In this case you would need to exclude your html file from the polymer-webpack-loader or look for other ways to avoid this conflict. See: html-webpack-plugin template options