Check out http://www.asciitable.com/ Look at the Hx, (Hex) column; 2C maps to , Any unusual encoding can be checked this way +—-+—–+—-+—–+—-+—–+—-+—–+ | Hx | Chr | Hx | Chr | Hx | Chr | Hx | Chr | +—-+—–+—-+—–+—-+—–+—-+—–+ | 00 | NUL | 20 | SPC | 40 | @ | 60 | … Read more
From Wikipedia (emphasis and link added): When data that has been entered into HTML forms is submitted, the form field names and values are encoded and sent to the server in an HTTP request message using method GET or POST, or, historically, via email. The encoding used by default is based on a very early … Read more