What is the proper way to execute a callback function while making a "synchronous" request?

How would you configure a *synchronous* GET request to "/resource" after instantiating a new XMLHttpRequest object: var xhr = new XMLHttpRequest();?

Which readystate value indicates the response has been fully received from the asynchronous request?

What is the technical limitation to implementing user login entirely on the client side using Ajax?

According to the W3C specification, which HTTP methods should throw a security exception when used with XMLHttpRequest?

Your cross-origin Ajax request is causing your console to throw the error "Resource interpreted as Script but transferred with MIME type application/json. Uncaught SyntaxError: Unexpected token :" What might be happening?

Which is General HTTP headers?

Which is HTTP response headers?

The responseText or responseXML property of the XMLHttpRequest ____?

For the code fragment below function foo() { var httpRequest = new XMLHttpRequest(); httpRequest.open('GET', '/echo/json'); httpRequest.send(); return httpRequest.responseText; } var result = foo(); What will be the value of ‘result’

The browser will put 'text' that the server returns in which of the following Request Object property?