feat(nuxt): allow disabling early hints

packages/nuxt/src/core/nitro.ts

@@ -99,6 +99,7 @@ export async function initNitro (nuxt: Nuxt & { _nitro?: Nitro }) {
     },
     replace: {
       'process.env.NUXT_NO_SSR': nuxt.options.ssr === false,
+      'process.env.NUXT_EARLY_HINTS': nuxt.options.experimental.writeEarlyHints !== false,
       'process.env.NUXT_NO_SCRIPTS': !!nuxt.options.experimental.noScripts && !nuxt.options.dev,
       'process.env.NUXT_INLINE_STYLES': !!nuxt.options.experimental.inlineSSRStyles,
       'process.env.NUXT_PAYLOAD_EXTRACTION': !!nuxt.options.experimental.payloadExtraction,

packages/nuxt/src/core/runtime/nitro/renderer.ts

@@ -157,7 +157,7 @@ export default defineRenderHandler(async (event) => {
   const renderer = (process.env.NUXT_NO_SSR || ssrContext.noSSR) ? await getSPARenderer() : await getSSRRenderer()
 
   // Render 103 Early Hints
-  if (!isRenderingPayload && !process.env.prerender) {
+  if (process.env.NUXT_EARLY_HINTS && !isRenderingPayload && !process.env.prerender) {
     const { link } = renderResourceHeaders({}, renderer.rendererContext)
     writeEarlyHints(event, link)
   }

packages/schema/src/config/experimental.ts

@@ -81,6 +81,9 @@ export default defineUntypedSchema({
     payloadExtraction: true,
 
     /** Enable cross-origin prefetch using the Speculation Rules API. */
-    crossOriginPrefetch: false
+    crossOriginPrefetch: false,
+
+    /** Write early hints when using node server */
+    writeEarlyHints: true
   }
 })