1 files changed, 14 insertions, 1 deletions
diff --git a/lib/internal/modules/cjs/loader.js b/lib/internal/modules/cjs/loader.js
index f3f8b0c8e0..6cdafac3de 100644
--- a/lib/internal/modules/cjs/loader.js
+++ b/lib/internal/modules/cjs/loader.js
@@ -29,6 +29,7 @@ const assert = require('assert').ok;
 const fs = require('fs');
 const internalFS = require('internal/fs/utils');
 const path = require('path');
+const { URL } = require('url');
 const {
   internalModuleReadJSON,
   internalModuleStat
@@ -656,6 +657,13 @@ Module.prototype.require = function(id) {
 // (needed for setting breakpoint when called with --inspect-brk)
 var resolvedArgv;
 
+function normalizeReferrerURL(referrer) {
+  if (typeof referrer === 'string' && path.isAbsolute(referrer)) {
+    return pathToFileURL(referrer).href;
+  }
+  return new URL(referrer).href;
+}
+
 
 // Run the file contents in the correct scope or sandbox. Expose
 // the correct helper variables (require, module, exports) to
@@ -671,7 +679,12 @@ Module.prototype._compile = function(content, filename) {
   var compiledWrapper = vm.runInThisContext(wrapper, {
     filename: filename,
     lineOffset: 0,
-    displayErrors: true
+    displayErrors: true,
+    importModuleDynamically: experimentalModules ? async (specifier) => {
+      if (asyncESM === undefined) lazyLoadESM();
+      const loader = await asyncESM.loaderPromise;
+      return loader.import(specifier, normalizeReferrerURL(filename));
+    } : undefined,
   });
 
   var inspectorWrapper = null;