From 210e24aaa0d1685ca704f8c24692197430150817 Mon Sep 17 00:00:00 2001
From: pierrejeambrun <pierrejbrun@gmail.com>
Date: Wed, 17 Jun 2026 11:24:15 +0200
Subject: [PATCH] Percent-encode API client path params for keys with slashes

---
 airflow-core/src/airflow/ui/src/queryClient.ts | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/airflow-core/src/airflow/ui/src/queryClient.ts b/airflow-core/src/airflow/ui/src/queryClient.ts
index e465402c3088a..48b47499046df 100644
--- a/airflow-core/src/airflow/ui/src/queryClient.ts
+++ b/airflow-core/src/airflow/ui/src/queryClient.ts
@@ -29,6 +29,12 @@ if (OpenAPI.BASE.endsWith("/")) {
   OpenAPI.BASE = OpenAPI.BASE.slice(0, -1);
 }
 
+// Encode path params as full URI components so values containing "/" (e.g. a variable key like
+// "/foo") become "%2Ffoo" rather than a literal "//", which proxies may collapse. The generated
+// client otherwise defaults to encodeURI, which leaves "/" untouched.
+// The backend automatically decodes path params.
+OpenAPI.ENCODE_PATH = encodeURIComponent;
+
 const RETRY_COUNT = 3;
 
 const retryFunction = (failureCount: number, error: unknown) => {