Add a check against the name of the current chunk and do not add JS to the those that are generated via mini-css-extract-plugin.

Author: ryanand26

@plotly/webpack-dash-dynamic-import/src/index.js

@@ -78,6 +78,10 @@ class WebpackDashDynamicImport {
     apply(compiler) {
         compiler.hooks.compilation.tap('WebpackDashDynamicImport', compilation => {
             compilation.mainTemplate.hooks.requireExtensions.tap('WebpackDashDynamicImport > RequireExtensions', (source, chunk, hash) => {
+                // Prevent CSS chunks from having JS appended to them
+                if (chunk.name === 'mini-css-extract-plugin') {
+                    return source;
+                }
                 return source + resolveImportSource();
             });
         });