What are common headers in HTTP?

General headers in HTTP are header fields that can be used in both requests and responses. They provide general information about the message or connection, not tied to the content or recipient.

Examples of general headers:

• Cache-Control: Manages caching on the client and server side.
• Connection: Manages connection options (e.g., close or keep-alive).
• Date: The date and time the message was sent.
• Pragma: Used for backward compatibility with older HTTP versions; similar to Cache-Control: no-cache.
• Trailer: Indicates which headers are in the end of the message (in the trailer).
• Transfer-Encoding: Indicates the type of transformation applied to the message body.
• Upgrade: Offers to upgrade to a newer protocol version.
• Via: Used by proxies to track the request route.
• Warning: Warnings about possible issues with message processing.