Question

I defined a XMLHttpRequest in the Cloud9 IDE like this:

var xhr = new XMLHttpRequest();

But it prompted an error, saying ReferenceError: XMLHttpRequest is not defined.

Is XMLHttpRequest defined in Cloud9 IDE?

Thanks!

Answer 1

If you are running your javascript file via the ‘Debug’ button then it will be executed in node.js, which doesn’t contain XMLHttpRequest (because it’s a browser feature).

If the file you’re developing is a client side file, rather open the HTML page that references the js file via the ‘Preview’ button.

Otherwise, you can use node-XMLHttpRequest, that mimics the browser behavior, or request, which is the de-factor standard of doing requests to other services for nodejs.