fix bug

Author: Ethan-Arrowood

packages/next/src/server/stream-utils/node-web-streams-helper.ts

@@ -444,7 +444,6 @@ export function createRootLayoutValidatorStream(): TransformStream<
 > {
   let foundHtml = false
   let foundBody = false
-
   let content = new Uint8Array(0)
   return new TransformStream({
     async transform(chunk, controller) {
@@ -453,13 +452,13 @@ export function createRootLayoutValidatorStream(): TransformStream<
       if (!foundHtml || !foundBody) {
         if (
           !foundHtml &&
-          indexOfUint8Array(content, ENCODED_TAGS.OPENING.HTML)
+          indexOfUint8Array(content, ENCODED_TAGS.OPENING.HTML) > -1
         ) {
           foundHtml = true
         }
         if (
           !foundBody &&
-          indexOfUint8Array(content, ENCODED_TAGS.OPENING.BODY)
+          indexOfUint8Array(content, ENCODED_TAGS.OPENING.BODY) > -1
         ) {
           foundBody = true
         }