What are common certificate-related causes for `err_ssl_protocol_error` on localhost in Windows 10?

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Grade: Education Subject: Support
What are common certificate-related causes for `err_ssl_protocol_error` on localhost in Windows 10?
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Common certificate issues include using a self-signed certificate that your browser doesn't trust, an expired certificate, a certificate with an incorrect hostname (e.g., not matching 'localhost'), or a certificate that's been revoked. Ensure your localhost certificate is valid and trusted by your browser.