From 753afb0d303f0da1be69f5f44062da3d955d135c Mon Sep 17 00:00:00 2001
From: Jeremiah Lowin <153965+jlowin@users.noreply.github.com>
Date: Sat, 28 Jun 2025 21:51:32 -0400
Subject: [PATCH] Pass httpxerrors through

---
 src/fastmcp/client/client.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/fastmcp/client/client.py b/src/fastmcp/client/client.py
index 66d1099ce..96330f3bc 100644
--- a/src/fastmcp/client/client.py
+++ b/src/fastmcp/client/client.py
@@ -294,7 +294,9 @@ class Client(Generic[ClientTransportT]):
             and not self._session_task.cancelled()
         ):
             exception = self._session_task.exception()
-            if exception is not None:
+            if isinstance(exception, httpx.HTTPStatusError):
+                raise exception
+            elif exception is not None:
                 raise RuntimeError(
                     f"Client failed to connect: {exception}"
                 ) from exception