400 Bad Request - The plain HTTP request was sent to HTTPS port #521

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MrUnknownDE · 2026-04-05T20:28:03+02:00

MrUnknownDE commented

2026-04-05 20:28:03 +02:00

Originally created by @rodurma on 6/16/2022

Hello,

I am trying to install CloudPanel in Vultr but when I access the http://SERVER_IP:8443 I am receive this nginx error:

400 Bad Request
The plain HTTP request was sent to HTTPS port
nginx

Anyone knows how can I fix it?

Thank you.

*Originally created by @rodurma on 6/16/2022* Hello, I am trying to install CloudPanel in Vultr but when I access the http://SERVER_IP:8443 I am receive this nginx error: ``` 400 Bad Request The plain HTTP request was sent to HTTPS port nginx ``` Anyone knows how can I fix it? Thank you.

MrUnknownDE closed this issue

2026-04-05 20:28:03 +02:00

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Reference: github/cloudpanel-ce#521