This error typically indicates that the client's request was not properly secured using HTTPS. This is because the browser has been told to send the request over a secure connection, but it fails to set up a secure context.
One common issue with this type of error is when the client's certificate is not properly installed or configured on the server-side. If the certificate is missing or outdated, the browser will reject the request and display an error message stating that the connection was not established securely.
In some cases, the error can also be caused by a mismatch between the browser version and the server-side implementation of HTTPS. For example, if the client uses a lower version of SSL/TLS than the server has been configured to support, it will not be able to establish an encrypted connection with the server.
It is essential for developers to understand that HTTPS connections are a two-way process and must be properly established before sending sensitive data. By implementing secure certificate practices and checking for compatibility issues, organizations can minimize the occurrence of this error and ensure the security of their cloud services.