Deprecation on xmlhttprequest


this is from chrome console window, any ideas about this everytime when ajax is executed?


The Ajax call uses the JavaScript XMLHttpRequest() function.

It goes and gets information from the net. If you use it synchronously, it freezes your app for however long it takes for the request to complete. Seeing that we are getting information from the net, there is no guarantee how fast this will complete. It’s not a great user experience to freeze the user while waiting.

Fortunately, the Ajax() function as a returnFunction option. If you use this, the user will not be frozen and you won’t get this warning.

There is more information here.