[BUG] NextAuth errors with [unenv] crypto.createCipheriv is not implemented yet!

[RUNFUNRUN]

Tip

@arnavgupta00 found a workaround, see cloudflare/workerd#3277 (comment)

cloudflare/workerd#3277 (comment)

Describe the bug

When next-auth is used and next-auth related functions are executed, the following error occurs.

[wrangler:err] TypeError: Cannot assign to read only property 'cache' of object '#<eA>'
    at new CustomRequest (file:///Users/runfunrun/projects/test/opennext-cf/.open-next/server-functions/default/handler.mjs:20:18)
    at new $ (file:///Users/runfunrun/projects/test/opennext-cf/.open-next/middleware/handler.mjs:797:62)
    at o5 (file:///Users/runfunrun/projects/test/opennext-cf/.open-next/middleware/handler.mjs:5655:16)
    at so (file:///Users/runfunrun/projects/test/opennext-cf/.open-next/middleware/handler.mjs:5797:19)
    at Object.handler (file:///Users/runfunrun/projects/test/opennext-cf/.open-next/middleware/handler.mjs:5782:20)
    at null.<anonymous> (file:///Users/runfunrun/projects/test/opennext-cf/.open-next/middleware/handler.mjs:1268:174)
    at Object.wrap (file:///Users/runfunrun/projects/test/opennext-cf/.open-next/middleware/handler.mjs:1194:20)
    at null.<anonymous> (file:///Users/runfunrun/projects/test/opennext-cf/.open-next/middleware/handler.mjs:1266:276)
    at null.<anonymous> (file:///Users/runfunrun/projects/test/opennext-cf/.open-next/middleware/handler.mjs:1106:25)
    at i2.with (file:///Users/runfunrun/projects/test/opennext-cf/.open-next/middleware/handler.mjs:6421:25)

Steps to reproduce

1. clone this repository https://github.com/RUNFUNRUN/opennext-cf
2. install packages

bun i

3. copy env

cp sample.env .env

(Environment variables can be reproduced as in the sample.)
4. run preview

bun run preview

5. open http://localhost:8787/
   If I try deleting middleware.ts, I can access http://localhost:8787/ , but when I press the Sign In button, I get the same error.

Expected behavior

next-auth works

@opennextjs/cloudflare version

0.3.2

Wrangler version

3.99.0

next info output

Operating System:
  Platform: darwin
  Arch: arm64
  Version: Darwin Kernel Version 24.1.0: Thu Nov 14 18:15:21 PST 2024; root:xnu-11215.41.3~13/RELEASE_ARM64_T6041
  Available memory (MB): 24576
  Available CPU cores: 12
Binaries:
  Node: 23.5.0
  npm: 10.9.2
  Yarn: N/A
  pnpm: 9.14.2
Relevant Packages:
  next: 15.1.3 // Latest available version is detected (15.1.3).
  eslint-config-next: 15.1.3
  react: 19.0.0
  react-dom: 19.0.0
  typescript: 5.7.2
Next.js Config:
  output: N/A

Additional context

No response

[vicb]

Can you try to install the following version of the adapter: https://pkg.pr.new/@opennextjs/cloudflare@212

It comes from PR #212 and should solve the issue

[RUNFUNRUN]

Thank you very much.
This error has been resolved.

However, I got another error.
Should I send it as a separate issue?
This may not be an opennext issue

✘ [ERROR] [auth][error] Error: [unenv] crypto.createCipheriv is not implemented yet!


✘ [ERROR] at createNotImplementedError (file:///Users/runfunrun/projects/test/opennext-cf/.wrangler/tmp/dev-P0rOeD/worker.js:69:10)

      at fn
  (file:///Users/runfunrun/projects/test/opennext-cf/node_modules/unenv/runtime/_internal/utils.mjs:26:11)
      at null.<anonymous>
  (file:///Users/runfunrun/projects/test/opennext-cf/.open-next/.next/standalone/.next/server/chunks/192.js:25:22170)
      at eG
  (file:///Users/runfunrun/projects/test/opennext-cf/.open-next/.next/standalone/.next/server/chunks/192.js:25:22293)
      at tP.encrypt
  (file:///Users/runfunrun/projects/test/opennext-cf/.open-next/.next/standalone/.next/server/chunks/192.js:25:36728)
      at async tO.encrypt
  (file:///Users/runfunrun/projects/test/opennext-cf/.open-next/.next/standalone/.next/server/chunks/192.js:25:37464)
      at async tG
  (file:///Users/runfunrun/projects/test/opennext-cf/.open-next/.next/standalone/.next/server/chunks/192.js:25:50675)
      at async n8
  (file:///Users/runfunrun/projects/test/opennext-cf/.open-next/.next/standalone/.next/server/chunks/192.js:392:26349)
      at async Object.create
  (file:///Users/runfunrun/projects/test/opennext-cf/.open-next/.next/standalone/.next/server/chunks/192.js:392:27246)
      at async s_
  (file:///Users/runfunrun/projects/test/opennext-cf/.open-next/.next/standalone/.next/server/chunks/192.js:392:47901)

[vicb]

Should I send it as a separate issue?

It's ok to re-use this issue - I have changed the title to reflect what's need to be done here.

crypto.createCipheriv is not yet implemented by workerd but we're working on it. Should be available early 2025.

[RUNFUNRUN]

I see.
Thanks<3

[Macil]

I've run into this same issue while trying to use opennextjs-cloudflare with next-auth.

I notice that the Error: [unenv] crypto.createCipheriv is not implemented yet! error gets thrown from jose/src/runtime/node/encrypt.ts, which surprises me because the library jose has a separate implementation using the SubtleCrypto API instead of crypto.createCipheriv (jose/src/runtime/browser/encrypt.ts) which is meant to be used in not only browsers but also workerd (jose/package.json#L85). I'm not sure why the node version of the package is being used instead of the workerd version.

If I edit node_modules/jose/package.json so all of the "import"/"main" fields are equal to the "workerd"/"browser" fields so that the workerd/browser version is used instead of the node version, then this issue is solved. (Though next I have an issue where next-auth always redirects to https://localhost:8787/... URLs instead of using http:// during sign-in, which I've given up on trying to figure out.)

[vicb]

@Macil do you have a repo with a repro? Can I also ask the version of Next you use?

[Macil]

Here's a reproduction repo: https://github.com/Macil/opennext-cf-next-auth-bug-repro

This is using Next 14.2.23, set up using the npm create cloudflare@latest -- my-next-app --framework=next --experimental command from the OpenNext docs.