From dabf221954fe8ec729cff2956812bf00ec994b3c Mon Sep 17 00:00:00 2001
From: Arya <arya.mohanan@ibm.com>
Date: Thu, 8 Jan 2026 14:31:49 +0530
Subject: [PATCH] fix(native-fetch): transmitted span immediately after
 receiving headers

---
 .../tracing/instrumentation/protocols/nativeFetch.js | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/packages/core/src/tracing/instrumentation/protocols/nativeFetch.js b/packages/core/src/tracing/instrumentation/protocols/nativeFetch.js
index b1ce5b1f93..9b72e210f6 100644
--- a/packages/core/src/tracing/instrumentation/protocols/nativeFetch.js
+++ b/packages/core/src/tracing/instrumentation/protocols/nativeFetch.js
@@ -180,16 +180,18 @@ function instrument() {
             response.headers,
             extraHttpHeadersToCapture
           );
+
+          span.d = Date.now() - span.ts;
+          if (capturedHeaders != null && Object.keys(capturedHeaders).length > 0) {
+            span.data.http.header = capturedHeaders;
+          }
+          span.transmit();
         })
         .catch(err => {
           span.ec = 1;
           tracingUtil.setErrorDetails(span, err, 'http');
-        })
-        .finally(() => {
+
           span.d = Date.now() - span.ts;
-          if (capturedHeaders != null && Object.keys(capturedHeaders).length > 0) {
-            span.data.http.header = capturedHeaders;
-          }
           span.transmit();
         });