How to correctly send binary data over https post?

@arnoldo.moen 

To correctly send binary data over HTTPS POST, you will need to encode the binary data as a base64 string before sending it in the POST request. Here is an example of how you can do this in JavaScript:

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// Create a new XMLHttpRequest object
var xhr = new XMLHttpRequest();

// Open a POST request to the desired URL
xhr.open("POST", "https://example.com/api", true);

// Set the Content-Type header to indicate that the request body is encoded as base64
xhr.setRequestHeader("Content-Type", "application/octet-stream");

// Convert the binary data to a base64 string
var binaryData = /* Your binary data */;
var base64Data = btoa(String.fromCharCode.apply(null, new Uint8Array(binaryData)));

// Send the base64 data in the request body
xhr.send(base64Data);

On the server-side, you will need to decode the base64 string back to binary data to process it. The specific method for doing this may vary depending on the server-side technology you are using.

Make sure to also handle any necessary error checking and validation to ensure the binary data is sent and received correctly. Additionally, consider using secure encryption methods to protect the data while in transit.