Hi! My n8n instance suddenly started showing this error without any changes from my side: Origin header does NOT match the expected origin.
It looks like WebSocket is not being routed correctly by the reverse proxy. The n8n editor depends on WebSocket to work properly.
Everything was working fine before. Could this be a proxy or SSL issue?
Can you help me check if WebSocket forwarding is enabled or if something changed in the proxy settings?
Thank you in advance!