fix: use webpack sources of the current webpack compiler instance

Author: jantimon

lib/child-compiler.js

@@ -11,10 +11,6 @@
  *
  */
 'use strict';
-const NodeTemplatePlugin = require('webpack/lib/node/NodeTemplatePlugin');
-const NodeTargetPlugin = require('webpack/lib/node/NodeTargetPlugin');
-const LoaderTargetPlugin = require('webpack/lib/LoaderTargetPlugin');
-const SingleEntryPlugin = require('webpack/lib/SingleEntryPlugin');
 
 let instanceId = 0;
 /**
@@ -79,6 +75,11 @@ class HtmlWebpackChildCompiler {
     const webpack = mainCompilation.compiler.webpack;
     const Compilation = webpack.Compilation;
 
+    const NodeTemplatePlugin = webpack.node.NodeTemplatePlugin;
+    const NodeTargetPlugin = webpack.node.NodeTargetPlugin;
+    const LoaderTargetPlugin = webpack.LoaderTargetPlugin;
+    const SingleEntryPlugin = webpack.SingleEntryPlugin;
+
     // To prevent multiple compilations for the same template
     // the compilation is cached in a promise.
     // If it already exists return