diff --git a/examples/magic-html/webpack.config.js b/examples/magic-html/webpack.config.js
index 30c087549e..444bf6e0a3 100644
--- a/examples/magic-html/webpack.config.js
+++ b/examples/magic-html/webpack.config.js
@@ -7,9 +7,6 @@ const { setup } = require("../util");
 module.exports = setup({
   context: __dirname,
   entry: "./app.js",
-  experiments: {
-    outputModule: true,
-  },
   devServer: {
     magicHtml: true,
   },
diff --git a/lib/Server.js b/lib/Server.js
index 9cffb872e2..94232913c5 100644
--- a/lib/Server.js
+++ b/lib/Server.js
@@ -15,18 +15,6 @@ if (!process.env.WEBPACK_SERVE) {
   process.env.WEBPACK_SERVE = true;
 }
 
-class AssetsInfoPlugin {
-  constructor(callback) {
-    this.callback = callback;
-  }
-  // eslint-disable-next-line class-methods-use-this
-  apply(compiler) {
-    compiler.hooks.done.tap("assets-info-plugin", (stats) => {
-      this.callback(stats.compilation.assetsInfo);
-    });
-  }
-}
-
 class Server {
   constructor(options = {}, compiler) {
     // TODO: remove this after plugin support is published
@@ -1080,12 +1068,6 @@ class Server {
           plugin.apply(compiler);
         }
       }
-
-      if (this.options.magicHtml) {
-        new AssetsInfoPlugin((assetsInfo) => {
-          this.assetsInfo = assetsInfo;
-        }).apply(this.compiler);
-      }
     });
 
     if (this.options.client && this.options.client.progress) {
@@ -1962,7 +1944,7 @@ class Server {
         const splitOutputFilename = outputFilename.split(".");
         let isOutputModule = false;
 
-        this.assetsInfo.forEach((value, key) => {
+        this.stats.compilation.assetsInfo.forEach((value, key) => {
           // main.js => ["main", "js"]
           // main.another.js => ["main", "another", "js"]
           const splitKey = key.split(".");
@@ -1972,7 +1954,7 @@ class Server {
           // If key = main.other.mjs && filename = main.other => true
           if (
             splitKey.length - 1 === splitOutputFilename.length &&
-            key.split(".")[0] === outputFilename.split(".")[0]
+            splitKey[0] === outputFilename.split(".")[0]
           ) {
             extension = splitKey[splitKey.length - 1];
             isOutputModule = value.javascriptModule;