Troubleshooting
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      2. Troubleshooting

      Client sent an HTTP request to an HTTPS server

      Issue Description

      When accessing Portainer via the web you may receive the following error message:

      Client sent an HTTP request to an HTTPS server.

      Cause

      This error occurs when you attempt to access Portainer's HTTPS URL (port 9443) using the HTTP protocol:

      http://my.portainer.url:9443/

      This is because port 9443 only accepts the HTTPS protocol and does not accept HTTP requests.

      Resolution

      Use the HTTPS protocol in the address when accessing port 9443.

      https://my.portainer.url:9443/

      Alternatively if you have HTTP access enabled you can access via HTTP on port 9000:

      http://my.portainer.url:9000/