fix: remove deprecated "identity" for "transfer-encoding" header (#487)

skwee357 · web-flow · commit 6753fd59f91c · 2026-05-05T10:29:51.000-03:00
diff --git a/.changeset/remove-identity-value.md b/.changeset/remove-identity-value.md
@@ -0,0 +1,5 @@
+---
+"@kitajs/fastify-html-plugin": minor
+---
+
+Remove the value `identity` from `transfer-encoding` header, as `identity` is deprecated per [RFC 7230](https://www.rfc-editor.org/rfc/rfc7230.html).
diff --git a/packages/fastify-html-plugin/src/html.ts b/packages/fastify-html-plugin/src/html.ts
@@ -39,7 +39,6 @@ function handleSyncHtml(htmlStr: string, reply: FastifyReply) {
 
   if (requestData === undefined) {
     return reply
-      .header('transfer-encoding', 'identity')
       .header('content-length', Buffer.byteLength(htmlStr, 'utf-8'))
       .send(htmlStr)
   }

-Original file line number
+Diff line change
@@ @@ -0,0 +1,5 @@ @@
 +---
 +"@kitajs/fastify-html-plugin": minor
 +---
++
 +Remove the value `identity` from `transfer-encoding` header, as `identity` is deprecated per [RFC 7230](https://www.rfc-editor.org/rfc/rfc7230.html).
Original file line number	Diff line number	Diff line change
`@@ -39,7 +39,6 @@ function handleSyncHtml(htmlStr: string, reply: FastifyReply) {`
`39`	`39`
`40`	`40`	`if (requestData === undefined) {`
`41`	`41`	`return reply`
`42`		`- .header('transfer-encoding', 'identity')`
`43`	`42`	`.header('content-length', Buffer.byteLength(htmlStr, 'utf-8'))`
`44`	`43`	`.send(htmlStr)`
`45`	`44`	`}`