Display a warning on client browser when cipher suite mismatch

Hello L__G_

When you use an HTTPS scheme in your browser, you are asking the browser to perform a TLS handshake before sending any HTTP traffic. If both ciphers don't match, you will receive a TLS Alert during the TLS handshake and the connection will be interrupted.

To respond with a specific message, you should send somehow an HTTP traffic response without encryption, but you cannot respond with an HTTP packet because:
1. Your TLS handshake was finished abruptly
2. In HTTP, you only respond to queries that were initiated by the client, and you didn't send any query to the server because the TLS was interrupted.

So, this is technically restricted by the protocol.