Basic PPR

packages/open-next/src/adapters/cache.ts

@@ -237,6 +237,7 @@ export default class S3Cache {
               rscData: Buffer.from(cacheData.rsc),
               status: meta?.status,
               headers: meta?.headers,
+              postponed: meta?.postponed,
             },
           } as CacheHandlerValue;
         }

packages/open-next/src/build.ts

@@ -523,8 +523,12 @@ async function createCacheAssets(monorepoRoot: string) {
     () => true,
     (filepath) => {
       const ext = path.extname(filepath);
-      const newFilePath =
+      let newFilePath =
         ext !== "" ? filepath.replace(ext, ".cache") : `${filepath}.cache`;
+      // Handle prefetch cache files for partial prerendering
+      if (newFilePath.endsWith(".prefetch.cache")) {
+        newFilePath = newFilePath.replace(".prefetch.cache", ".cache");
+      }
       switch (ext) {
         case ".meta":
         case ".html":

packages/open-next/src/cache/next-types.ts

@@ -73,4 +73,5 @@ export type Extension = "cache" | "fetch";
 export interface Meta {
   status?: number;
   headers?: Record<string, undefined | string | string[]>;
+  postponed?: string;
 }