How are the requests sent from your machine different from the ones sent from other machines? Obviously, the server sees something different, so I'd start by examining the requests - maybe by logging all request parameters and headers.
Client-side scripts will not work if the user has turned off scripts in his browser.
Also, you should never reply on only client-side code to validate data, you should always also validate the data on the server. There are too many ways to circumvent client side checking and thereby submit invalid data.
Joined: Dec 27, 2009
Wow...I didn't know about that....
But, I havn't seen any validation codes on server side.....
Would you mind share with me some examples? Any links that can allow me read up about this server side validation method? Very keen to learn about it. Thanks again.