ERR_NGROK_3108: The state parameter used to validate your request cannot be read

What does ERR_NGROK_3108 mean?

ngrok returns ERR_NGROK_3108 with this message:

The state parameter used to validate your request cannot be read.

Close this page and try again.

Troubleshoot ERR_NGROK_3108 with your AI agent. Connect it to the ngrok MCP server, then ask what caused the error and how to fix it.

Email support@ngrok.com and include the error code.