[BUG] Internal Server Error when redirecting to interaction

[raducristianpopa]

Bug Report

Describe the bug

After an interactive grant is created and an application tries to redirect the user to the URL, there is an Internal Server Error. This is not happening on a regular basis. After the page is refreshed, the user is correctly redirected to the IdP page.

To Reproduce

This happened to me when connecting my wallet from Rafiki Money to the Web Monetization Extension

Expected behavior

The user should be redirected directly to the IdP page, without having to refresh a page that showcases an Internal Server Error.

Desktop (please complete the following information):

• OS: [e.g. Ubuntu]
• Version [e.g. 20.04LTS]
• Node version [e.g. 18.16.0]
• pnpm version [e.g. 8.6.7]
• Browser [e.g. chrome, safari]

Screenshots

Additional context

• Logs from Rafiki Auth (rafiki.money)

  TypeError: option maxAge is invalid
      at new Cookie (/home/rafiki/node_modules/.pnpm/cookies@0.9.1/node_modules/cookies/index.js:182:11)
      at Cookies.set (/home/rafiki/node_modules/.pnpm/cookies@0.9.1/node_modules/cookies/index.js:117:16)
      at ContextSession.save (/home/rafiki/node_modules/.pnpm/koa-session@6.4.0/node_modules/koa-session/lib/context.js:331:26)
      at process.processTicksAndRejections (node:internal/process/task_queues:95:5)
      at async ContextSession.commit (/home/rafiki/node_modules/.pnpm/koa-session@6.4.0/node_modules/koa-session/lib/context.js:244:5)
      at async session (/home/rafiki/node_modules/.pnpm/koa-session@6.4.0/node_modules/koa-session/index.js:46:9)
      at async cors (/home/rafiki/node_modules/.pnpm/@koa+cors@5.0.0/node_modules/@koa/cors/index.js:109:16)

• In Dhali's blog post about the Rafiki Integration there is a section that mentions the same problem:

  When your rafiki.money tab opens, it sometimes fails to provide a functioning URL and requires refreshing!

[sabineschaller]

I was able to reproduce this on the localenv by requesting multiple outgoing payment grants (which require interaction) through Bruno. On the 4th try, I saw the Internal Server Error when opening the redirect link from Bruno.