diff --git a/.gitignore b/.gitignore
index 02130c1..e878101 100644
--- a/.gitignore
+++ b/.gitignore
@@ -21,3 +21,4 @@ unicode_gen
 run_octane
 run_sunspider_like
 build/
+.vscode/
\ No newline at end of file
diff --git a/qjs.c b/qjs.c
index 41ff6cb..b4ee1c7 100644
--- a/qjs.c
+++ b/qjs.c
@@ -174,7 +174,7 @@ static int eval_file(JSContext *ctx, const char *filename, int module)
         "    globalThis.loadFile = std.loadFile;\n"
         "    globalThis.printf = console.log;\n"
         "    globalThis.evalFile = std.loadScript;\n"
-        //"    globalThis.require = std.loadScript;\n"
+        "    globalThis.require = (moduleSpecifier) => import(moduleSpecifier).then(mod => mod.default || mod);\n"
         "    globalThis.getURL = std.urlGet;\n"
         "} else {\n"
         "    console.error('std is not defined.');\n"
diff --git a/repl.js b/repl.js
index 77b7752..3c73e1b 100644
--- a/repl.js
+++ b/repl.js
@@ -27,6 +27,11 @@ import * as os from "qjs:os";
 import * as bjson from "qjs:bjson";
 
 
+globalThis.global = globalThis
+globalThis.safeGlobal = {}
+global.console.error = console.log
+global.console.warn = console.log
+
 if (typeof os !== 'undefined') {
     globalThis.sleep = os.sleep
     async function setTimeout2(func, ms) {globalThis.clearTimeout = false; await sleep(ms); if (!clearTimeout) { func(); } }
@@ -35,20 +40,21 @@ if (typeof os !== 'undefined') {
     console.error('os is not defined.')
 }
 
-                     
-
 if (typeof std !== 'undefined') {
     globalThis.urlGet = std.urlGet
     globalThis.loadFile = std.loadFile
     globalThis.printf = console.log
     globalThis.evalFile = std.loadScript
-    // "    globalThis.require = std.loadScript"
+    globalThis.require = (moduleSpecifier) => import(moduleSpecifier).then(mod => mod.default || mod);
     globalThis.getURL = std.urlGet
 } else {
     console.error('std is not defined.');
 }
 
 (function(g) {
+    /* init polyfills */
+    g = globalThis
+
     /* add 'bjson', 'os' and 'std' bindings */
     g.bjson = bjson;
     g.os = os;