From 303a1c4127c580146544f0bbb7c43b25ea56bc39 Mon Sep 17 00:00:00 2001
From: Satya Rohith <me@satyarohith.com>
Date: Tue, 3 May 2022 17:03:24 +0530
Subject: [PATCH] fix(ext/http): panic on Response.error()

---
 ext/http/lib.rs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/ext/http/lib.rs b/ext/http/lib.rs
index 28689654e6..1d5c512dbc 100644
--- a/ext/http/lib.rs
+++ b/ext/http/lib.rs
@@ -506,7 +506,9 @@ async fn op_http_write_headers(
   let mut etag_header = None;
   let mut content_type_header = None;
 
-  builder.headers_mut().unwrap().reserve(headers.len());
+  if let Some(h) = builder.headers_mut() {
+    h.reserve(headers.len())
+  };
   for (key, value) in &headers {
     if key.eq_ignore_ascii_case(b"cache-control") {
       if let Ok(value) = std::str::from_utf8(value) {