patch exception bubbling

Author: james-elicx

packages/cloudflare/src/cli/build/build-worker.ts

@@ -8,6 +8,7 @@ import { inlineEvalManifest } from "./patches/to-investigate/inline-eval-manifes
 import { inlineMiddlewareManifestRequire } from "./patches/to-investigate/inline-middleware-manifest-require";
 import { inlineNextRequire } from "./patches/to-investigate/inline-next-require";
 import { patchCache } from "./patches/investigated/patch-cache";
+import { patchExceptionBubbling } from "./patches/to-investigate/patch-exception-bubbling";
 import { patchFindDir } from "./patches/to-investigate/patch-find-dir";
 import { patchReadFile } from "./patches/to-investigate/patch-read-file";
 import { patchRequire } from "./patches/investigated/patch-require";
@@ -164,6 +165,7 @@ async function updateWorkerBundledCode(workerOutputFile: string, config: Config)
   patchedCode = inlineEvalManifest(patchedCode, config);
   patchedCode = patchCache(patchedCode, config);
   patchedCode = inlineMiddlewareManifestRequire(patchedCode, config);
+  patchedCode = patchExceptionBubbling(patchedCode);
 
   await writeFile(workerOutputFile, patchedCode);
 }

packages/cloudflare/src/cli/build/patches/to-investigate/patch-exception-bubbling.ts

@@ -0,0 +1,11 @@
+/**
+ * When using SSG and `dynamicParams = false`, Next.js throws a NoFallbackError. This error is
+ * bubbled up by default in Node.js servers, however this causes issues in the workerd with
+ * the current response handling and streaming implementation we have, and leads to hanging
+ * promises.
+ */
+export function patchExceptionBubbling(code: string) {
+  console.log("# patchExceptionBubbling");
+
+  return code.replace(/_nextBubbleNoFallback = "1"/, "_nextBubbleNoFallback = undefined");
+}