Matt: April 2008 Archives

When you send a request via $.ajax, $.get, or $.post in jquery, you can test for the HTTP_X_REQUESTED_WITH header, looking for a value of 'XMLHttpRequest', a la:

function isajax() { return ((!empty($_SERVER['HTTP_X_REQUESTED_WITH'])) && $_SERVER['HTTP_X_REQUESTED_WITH'] == 'XMLHttpRequest'); }

But what happens when you're using the jQuery Form plugin? Normally, things work fine. Below the cut for a serious caveat!

Today I had the opportunity to play with event bubbling and applying generic event handlers. Quick overview on handling them (with jquery!) and which events cannot be cancelled.