In WEB development, I meet a problem with IE , FF, CHROME, SAFARI.
In login page, it will issue header request and JSON data (username and password) after I type them and press login button.
For FF, CHROME, SAFARI browser, they issue header request and JSON data in same packet.
For IE8&9, it issues header request first, then issue JSON data in second packet.
How to deal with this case ? I need read twice in IE case ? is there LWIPapi to know there is data coming ?