fixing HMR

Author: ScriptedAlchemy

package.json

@@ -1,6 +1,6 @@
 {
   "name": "extract-css-chunks-webpack-plugin",
-  "version": "0.0.0-placeholder",
+  "version": "3.0.4-beta.1",
   "author": "James Gillmore <james@faceyspacey.com>",
   "contributors": [
     "Zack Jackson <zackary.l.jackson@gmail.com> (https://github.com/zackljackson)"
@@ -18,7 +18,7 @@
     "start": "npm run build -- -w",
     "build": "cross-env NODE_ENV=production babel src -d dist --ignore 'src/**/*.test.js' --copy-files",
     "clean": "del-cli dist",
-    "lint": "eslint --cache --fix src test",
+    "lint": "eslint --cache --fix src",
     "prebuild": "npm run clean",
     "prepublish": "npm run build",
     "security": "nsp check",

src/index.js

@@ -146,31 +146,29 @@ class ExtractCssChunks {
   }
 
   apply(compiler) {
-    if (process.env.NODE_ENV === 'development') {
-      try {
-        const isHOT = isHMR(compiler);
-
-        if (isHOT && compiler.options.module && compiler.options.module.rules) {
-          const updatedRules = compiler.options.module.rules.reduce((rules, rule) => {
-            if (rule.use && Array.isArray(rule.use)) {
-              const isMiniCss = rule.use.some((l) => {
-                const needle = l.loader || l;
-                return needle.includes(pluginName);
-              });
-              if (isMiniCss) {
-                rule.use.unshift(hotLoader);
-              }
+    try {
+      const isHOT = this.options.hot ? true : isHMR(compiler);
+
+      if (isHOT && compiler.options.module && compiler.options.module.rules) {
+        const updatedRules = compiler.options.module.rules.reduce((rules, rule) => {
+          if (rule.use && Array.isArray(rule.use)) {
+            const isMiniCss = rule.use.some((l) => {
+              const needle = l.loader || l;
+              return needle.includes(pluginName);
+            });
+            if (isMiniCss) {
+              rule.use.unshift(hotLoader);
             }
-            rules.push(rule);
+          }
+          rules.push(rule);
 
-            return rules;
-          }, []);
+          return rules;
+        }, []);
 
-          compiler.options.module.rules = updatedRules;
-        }
-      } catch (e) {
-        console.error('Something went wrong: contact the author', JSON.stringify(e)); // eslint-disable-line no-console
+        compiler.options.module.rules = updatedRules;
       }
+    } catch (e) {
+      console.error('Something went wrong: contact the author', JSON.stringify(e)); // eslint-disable-line no-console
     }
 
     compiler.hooks.thisCompilation.tap(pluginName, (compilation) => {

test/manual/webpack.config.js

@@ -25,6 +25,7 @@ const config = {
     new Self({
       filename: '[name].css',
       chunkFilename: '[contenthash].css',
+      hot: false
     }),
 
     new webpack.NamedModulesPlugin(),