[Feature request] Pass the loaderContext in the callback

[dmnsgn]

It would be nice if this plugin was matching the html-loader preprocess option: https://github.com/webpack-contrib/html-loader#function

So we can emitError properly if anything goes wrong.

module.exports = {
  module: {
    rules: [
      {
        test: /\.hbs$/i,
        loader: 'html-loader',
        options: {
          preprocessor: (content, loaderContext) => {
            let result;

            try {
              result = processContent(content);
            } catch (error) {
              loaderContext.emitError(error);

              return content;
            }

            return result;
          },
        },
      },
    ],
  },
};

[haoliangyu]

Feel free to contribute :) Unfortunately I no longer work in frontend and lose the context to update this tool.