From 6f165c1c64f77024686dc969c3de6f030f274add Mon Sep 17 00:00:00 2001
From: Eric Zhang <34133756+EZForever@users.noreply.github.com>
Date: Mon, 1 Jun 2026 05:21:08 +0800
Subject: [PATCH] server : handle If-None-Match weak ETags (#23916)

---
 tools/server/server-http.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/server/server-http.cpp b/tools/server/server-http.cpp
index 3616b3b4d..34a20c9d2 100644
--- a/tools/server/server-http.cpp
+++ b/tools/server/server-http.cpp
@@ -325,7 +325,7 @@ bool server_http_context::init(const common_params & params) {
                     res.set_header("ETag", a->etag);
                     // Check If-None-Match for conditional GET (304 Not Modified)
                     if (const std::string & inm = req.get_header_value("If-None-Match");
-                        !inm.empty() && inm == a->etag) {
+                        !inm.empty() && (inm == a->etag || inm == std::string("W/") + a->etag)) {
                         res.status = 304;
                         return false;
                     }