From 26d35583c5b9e75b7986f332cfc68813ea3a6e06 Mon Sep 17 00:00:00 2001
From: Brendan Allan <brendonovich@outlook.com>
Date: Mon, 13 Apr 2026 09:39:53 +0800
Subject: [PATCH] sdk: throw error if response has text/html content type
 (#21289)

---
 packages/sdk/js/src/v2/client.ts | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/packages/sdk/js/src/v2/client.ts b/packages/sdk/js/src/v2/client.ts
index 67fe1de32f..2d71d8446d 100644
--- a/packages/sdk/js/src/v2/client.ts
+++ b/packages/sdk/js/src/v2/client.ts
@@ -77,6 +77,12 @@ export function createOpencodeClient(config?: Config & { directory?: string; exp
       workspace: config?.experimental_workspaceID,
     }),
   )
-  const result = new OpencodeClient({ client })
-  return result
+  client.interceptors.response.use((response) => {
+    const contentType = response.headers.get("content-type")
+    if (contentType === "text/html")
+      throw new Error("Request is not supported by this version of OpenCode Server (Server responded with text/html)")
+
+    return response
+  })
+  return new OpencodeClient({ client })
 }