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Linear OAuth2 API fails with 503 error #19599

@jaxkodex

Description

@jaxkodex

Describe the problem/error/question

I am trying to authorize the linear oauth client with actor permissions. However, once I authorize the app in the pop up, it redirects me to https://**-app.n8n.cloud/rest/oauth2-credential/callback

What is the error message (if any)?

# Error: Request failed with status code 503

More details
Failed to connect. The window can be closed now.

This error only happens when the credential is used with the actor=app, however if I use user, it works just fine.

Please share your workflow/screenshots/recording

(Select the nodes on your canvas and use the keyboard shortcuts CMD+C/CTRL+C and CMD+V/CTRL+V to copy and paste the workflow.)
⚠️ WARNING ⚠️ If you have sensitive data in your workflow (like API keys), please remove it before sharing.

The error occurs during credential configuration

Share the output returned by the last node

Debug info

core

  • n8nVersion: 1.109.2
  • platform: docker (cloud)
  • nodeJsVersion: 22.19.0
  • database: sqlite
  • executionMode: regular
  • concurrency: 5
  • license: community

storage

  • success: all
  • error: all
  • progress: false
  • manual: true
  • binaryMode: filesystem

pruning

  • enabled: true
  • maxAge: 168 hours
  • maxCount: 2500 executions

client

  • userAgent: mozilla/5.0 (macintosh; intel mac os x 10_15_7) applewebkit/537.36 (khtml, like gecko) chrome/139.0.0.0 safari/537.36
  • isTouchDevice: false

Generated at: 2025-09-15T08:49:20.461Z}

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