diff --git a/myjs.ipynb b/myjs.ipynb
new file mode 100644
index 0000000..10a21f0
--- /dev/null
+++ b/myjs.ipynb
@@ -0,0 +1,67 @@
+{
+ "metadata": {
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.9.2-final"
+  },
+  "orig_nbformat": 2,
+  "kernelspec": {
+   "name": "Python 3.9.2 64-bit",
+   "display_name": "Python 3.9.2 64-bit",
+   "metadata": {
+    "interpreter": {
+     "hash": "767d51c1340bd893661ea55ea3124f6de3c7a262a8b4abca0554b478b1e2ff90"
+    }
+   }
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 2,
+ "cells": [
+  {
+   "cell_type": "code",
+   "execution_count": 4,
+   "metadata": {},
+   "outputs": [
+    {
+     "output_type": "display_data",
+     "data": {
+      "text/plain": "<IPython.core.display.Javascript object>",
+      "application/javascript": "\nconsole.log(window.origin)\n"
+     },
+     "metadata": {}
+    },
+    {
+     "output_type": "stream",
+     "name": "stdout",
+     "text": [
+      "ok\n"
+     ]
+    }
+   ],
+   "source": [
+    "import IPython\n",
+    "cors_code='''\n",
+    "console.log(window.origin)\n",
+    "'''\n",
+    "display(IPython.display.Javascript(cors_code))\n",
+    "print(\"ok\")"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  }
+ ]
+}