feat(options): added option to disableAsync loading of CSS

Author: thomasbaldwin

src/index.js

@@ -304,6 +304,8 @@ class MiniCssExtractPlugin {
       mainTemplate.hooks.requireEnsure.tap(
         pluginName,
         (source, chunk, hash) => {
+          if (this.options.disableAsync) return null;
+          
           const chunkMap = this.getCssChunkObject(chunk);
 
           if (Object.keys(chunkMap).length > 0) {