What are allowed characters in cookies?

Question

What are the allowed characters in both cookie name and value? Are they same as URL or some common subset?

Reason I\'m asking is that I\'ve recently hit some strange

Answer 1

I think it's generally browser specific. To be on the safe side, base64 encode a JSON object, and store everything in that. That way you just have to decode it and parse the JSON. All the characters used in base64 should play fine with most, if not all browsers.