From 49fb529139ff4b43f472e24f2015482af82446b6 Mon Sep 17 00:00:00 2001
From: Corey Farrell <git@cfware.com>
Date: Fri, 22 Nov 2019 22:06:43 -0500
Subject: repl: fix referrer for dynamic import

The ESM loader does not accept a directory as the referrer, it requires
a path within the directory.  Add `/repl` to ensure relative dynamic
imports can succeed.

Fixes: https://github.com/nodejs/node/issues/19570

PR-URL: https://github.com/nodejs/node/pull/30609
Reviewed-By: Gus Caplan <me@gus.host>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Ben Coe <bencoe@gmail.com>
---
 lib/repl.js | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

(limited to 'lib')

diff --git a/lib/repl.js b/lib/repl.js
index e304bc2e77..c1473588d3 100644
--- a/lib/repl.js
+++ b/lib/repl.js
@@ -332,10 +332,12 @@ function REPLServer(prompt,
     if (code === '\n')
       return cb(null);
 
-    let pwd;
+    let parentURL;
     try {
       const { pathToFileURL } = require('url');
-      pwd = pathToFileURL(process.cwd()).href;
+      // Adding `/repl` prevents dynamic imports from loading relative
+      // to the parent of `process.cwd()`.
+      parentURL = pathToFileURL(path.join(process.cwd(), 'repl')).href;
     } catch {
     }
     while (true) {
@@ -350,7 +352,7 @@ function REPLServer(prompt,
           filename: file,
           displayErrors: true,
           importModuleDynamically: async (specifier) => {
-            return asyncESM.ESMLoader.import(specifier, pwd);
+            return asyncESM.ESMLoader.import(specifier, parentURL);
           }
         });
       } catch (e) {
-- 
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