fix(proxy) do not clear upgrade header (case-insensitive), fix Kong#4779

rockxcn · Jul 5, 2019 · 887380b · 887380b
1 parent 5991240
commit 887380b
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/kong/runloop/handler.lua b/kong/runloop/handler.lua
@@ -1349,7 +1349,7 @@ return {
       end
 
       if var.upstream_http_upgrade and
-         var.upstream_http_upgrade ~= var.upstream_upgrade then
+         lower(var.upstream_http_upgrade) ~= lower(var.upstream_upgrade) then
         header["Upgrade"] = nil
       end