fix: remove undefined values from headers

honojs · Oct 31, 2024 · 6a6be4f · 6a6be4f
1 parent 1f92c58
commit 6a6be4f
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/src/utils.ts b/src/utils.ts
@@ -47,7 +47,10 @@ export const buildOutgoingHttpHeaders = (
   const res: OutgoingHttpHeaders = {}
 
   const cookies = []
-  const entries = headers instanceof Headers ? headers.entries() : Object.entries(headers)
+  const entries =
+    headers instanceof Headers
+      ? headers.entries()
+      : Object.entries(headers).filter(([, value]) => value)
 
   for (const [k, v] of entries) {
     if (k === 'set-cookie') {
@@ -56,6 +59,7 @@ export const buildOutgoingHttpHeaders = (
       res[k] = v
     }
   }
+
   if (cookies.length > 0) {
     res['set-cookie'] = cookies
   }