From b3ee76e2a1cf378a3497e0e16ee5e9dc3ac3acdc Mon Sep 17 00:00:00 2001
From: Florian Klink <flokli@flokli.de>
Date: Wed, 29 Jul 2026 18:18:25 +0200
Subject: [PATCH] fetchYarnDeps: set impureEnvVars

Similar fix as https://github.com/NixOS/nixpkgs/pull/379841, but for
FODs using fetchYarnDeps.
---
 pkgs/build-support/node/fetch-yarn-deps/default.nix | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pkgs/build-support/node/fetch-yarn-deps/default.nix b/pkgs/build-support/node/fetch-yarn-deps/default.nix
index 19b7eeaee7a5..e0c790e1c874 100644
--- a/pkgs/build-support/node/fetch-yarn-deps/default.nix
+++ b/pkgs/build-support/node/fetch-yarn-deps/default.nix
@@ -136,6 +136,8 @@ in
               cacert
             ];
 
+            impureEnvVars = lib.fetchers.proxyImpureEnvVars;
+
             env = {
               GIT_SSL_CAINFO = "${cacert}/etc/ssl/certs/ca-bundle.crt";
               NODE_EXTRA_CA_CERTS = "${cacert}/etc/ssl/certs/ca-bundle.crt";