Describe the problem/error/question
I’m unable to access the login page of my n8n Cloud instance. The page fails to load properly, and several critical frontend resources return errors. This issue has persisted across multiple browsers, devices, and networks, even after clearing cache and using incognito mode.
What is the error message (if any)?
From browser dev tools (F12), I consistently see the following errors:
GET /assets/polyfills-BGt12fxg.js→ 404 Not Found_MapCache-CaP4mhI9.js:2001→ Uncaught SyntaxError: Unexpected end of inputsignin:1→ **Uncaught (in promise) Object`content.js:5215→ **Uncaught (in promise) { code: 403, httpStatus: 200, httpError: false, name: ‘i’ }`
These errors suggest that the frontend build is missing required JS files, and the login flow is failing due to a backend permission or token validation issue.
Please share your workflow
Not applicable — I cannot access the canvas due to login failure.
Share the output returned by the last node
Not applicable — no workflow execution is possible at this time.
Information on your n8n setup
n8n version:
Unknown (hosted on n8n Cloud)
Database (default: SQLite):
Managed by n8n Cloud
n8n EXECUTIONS_PROCESS setting (default: own, main):
Default (Cloud-managed)
Running n8n via (Docker, npm, n8n cloud, desktop app):
n8n Cloud
Operating system:
Browser-based access (tested on Windows 11, macOS, and mobile)