A flag indicating whether the current request (req
) appears to be an AJAX request (i.e. it was issued with its "X-Requested-With" header set to "XMLHttpRequest".)
req.xhr;
if (req.xhr) {
// Yup, it's AJAX alright.
}
- Whenever possible, you should prefer the
req.wantsJSON
flag. Avoid writing custom content-negotiation negotiation logic into your app - it makes your code more brittle and more verbose.