make sure server component externals only apply to files resolvable b…

…y node
vercel · May 3, 2023 · d315f5f · d315f5f
1 parent c546847
commit d315f5f
Showing 1 changed file with 7 additions and 1 deletion.
diff --git a/packages/next-swc/crates/next-core/src/next_import_map.rs b/packages/next-swc/crates/next-core/src/next_import_map.rs
@@ -230,8 +230,14 @@ pub async fn get_next_server_import_map(
 
             for name in next_config.server_component_externals().await?.iter() {
                 import_map.insert_exact_alias(name, external);
-                import_map.insert_wildcard_alias(format!("{name}/"), external);
+
+                // only mark as external if it's an extension supported by node.js
+                import_map.insert_wildcard_alias_with_suffix(format!("{name}/"), ".cjs", external);
+                import_map.insert_wildcard_alias_with_suffix(format!("{name}/"), ".js", external);
+                import_map.insert_wildcard_alias_with_suffix(format!("{name}/"), ".node", external);
+                import_map.insert_wildcard_alias_with_suffix(format!("{name}/"), ".json", external);
             }
+
             // The sandbox can't be bundled and needs to be external
             import_map.insert_exact_alias("next/dist/server/web/sandbox", external);
         }