Fixup better header check

Author: ostenbom

local-server/src/lib.rs

@@ -283,11 +283,11 @@ async fn linkup_request_handler(
             let downstream_response_headers = downstream_upgrade_response.headers_mut();
 
             // The headers from the upstream response are more important - trust the upstream server
-            for upstream_header in upstream_response.headers() {
+            for (upstream_key, upstream_value) in upstream_response.headers() {
                 // Except for content encoding headers, cloudflare does _not_ like them..
-                if !DISALLOWED_HEADERS.contains(&upstream_header.0.to_string().as_str()) {
+                if !DISALLOWED_HEADERS.contains(&upstream_key.as_str()) {
                     downstream_response_headers
-                        .insert(upstream_header.0, upstream_header.1.clone());
+                        .insert(upstream_key.clone(), upstream_value.clone());
                 }
             }