Enhance req.acceptsEncodings Method 5.x

[Abdel-Monaam-Aouini]

Enhance req.acceptsEncodings Method

This enhancement refines the req.acceptsEncodings method to improve the handling of the request's Accept-Encoding header. The updated method checks whether the client accepts the specified encoding(s) and returns the best matching encoding or an array of acceptable encodings.

Key Features:

• Supports single or multiple encoding strings and a comma-delimited list of encodings.
• Provides consistent behavior across different input formats.
• Enhances code readability and maintainability.

Examples:

• req.acceptsEncodings('gzip') returns "gzip" when the Accept-Encoding header includes "gzip".
• req.acceptsEncodings('br') returns undefined if the encoding isn't accepted by the client.
• req.acceptsEncodings('gzip, deflate') returns "gzip" as the best match.

This update ensures more robust handling of accepted encodings, improving compatibility and performance.

[wesleytodd]

I was going through issues and noticed this. We did not mean to close these, it was a consequence of deleting the 5.x branch after we merged. I am really sorry we accidentally closed these. I am at a conference right now, so cannot go about finding and re-opening them, but if you want to re-target them to master and re-open that would be awesome. If not I can get to it at some point.

[Abdel-Monaam-Aouini]

I was going through issues and noticed this. We did not mean to close these, it was a consequence of deleting the 5.x branch after we merged. I am really sorry we accidentally closed these. I am at a conference right now, so cannot go about finding and re-opening them, but if you want to re-target them to master and re-open that would be awesome. If not I can get to it at some point.

done #6086