From e6cc704845e6df20221727daa072b96f30382807 Mon Sep 17 00:00:00 2001
From: hrmny <github.leah@hrmny.sh>
Date: Fri, 11 Aug 2023 19:43:07 +0200
Subject: [PATCH] enable `ImageResponse`

---
 .../web/spec-extension/image-response.ts      | 82 +++++++++----------
 1 file changed, 38 insertions(+), 44 deletions(-)

diff --git a/packages/next/src/server/web/spec-extension/image-response.ts b/packages/next/src/server/web/spec-extension/image-response.ts
index bccd7401a2556..d4d7c22a10846 100644
--- a/packages/next/src/server/web/spec-extension/image-response.ts
+++ b/packages/next/src/server/web/spec-extension/image-response.ts
@@ -5,54 +5,48 @@ export class ImageResponse {
       typeof import('next/dist/compiled/@vercel/og').ImageResponse
     >
   ) {
-    // @ts-expect-error - process.turbopack is a custom property
-    if (process.turbopack) {
-      // TODO(sokra) enable this again when turbopack supports wasm
-      throw new Error("Turbopack doesn't support ImageResponse currently")
-    } else {
-      const readable = new ReadableStream({
-        async start(controller) {
-          const OGImageResponse: typeof import('next/dist/compiled/@vercel/og').ImageResponse =
-            // So far we have to manually determine which build to use,
-            // as the auto resolving is not working
-            (
-              await import(
-                process.env.NEXT_RUNTIME === 'edge'
-                  ? 'next/dist/compiled/@vercel/og/index.edge.js'
-                  : 'next/dist/compiled/@vercel/og/index.node.js'
-              )
-            ).ImageResponse
-          const imageResponse = new OGImageResponse(...args) as Response
+    const readable = new ReadableStream({
+      async start(controller) {
+        const OGImageResponse: typeof import('next/dist/compiled/@vercel/og').ImageResponse =
+          // So far we have to manually determine which build to use,
+          // as the auto resolving is not working
+          (
+            await import(
+              process.env.NEXT_RUNTIME === 'edge'
+                ? 'next/dist/compiled/@vercel/og/index.edge.js'
+                : 'next/dist/compiled/@vercel/og/index.node.js'
+            )
+          ).ImageResponse
+        const imageResponse = new OGImageResponse(...args) as Response
 
-          if (!imageResponse.body) {
-            return controller.close()
-          }
+        if (!imageResponse.body) {
+          return controller.close()
+        }
 
-          const reader = imageResponse.body!.getReader()
-          while (true) {
-            const { done, value } = await reader.read()
-            if (done) {
-              return controller.close()
-            }
-            controller.enqueue(value)
+        const reader = imageResponse.body!.getReader()
+        while (true) {
+          const { done, value } = await reader.read()
+          if (done) {
+            return controller.close()
           }
-        },
-      })
+          controller.enqueue(value)
+        }
+      },
+    })
 
-      const options = args[1] || {}
+    const options = args[1] || {}
 
-      return new Response(readable, {
-        headers: {
-          'content-type': 'image/png',
-          'cache-control':
-            process.env.NODE_ENV === 'development'
-              ? 'no-cache, no-store'
-              : 'public, immutable, no-transform, max-age=31536000',
-          ...options.headers,
-        },
-        status: options.status,
-        statusText: options.statusText,
-      })
-    }
+    return new Response(readable, {
+      headers: {
+        'content-type': 'image/png',
+        'cache-control':
+          process.env.NODE_ENV === 'development'
+            ? 'no-cache, no-store'
+            : 'public, immutable, no-transform, max-age=31536000',
+        ...options.headers,
+      },
+      status: options.status,
+      statusText: options.statusText,
+    })
   }
 }