Fetch vs Request

Question

I\'m consuming a JSON stream and am trying to use fetch to consume it. The stream emits some data every few seconds. Using fetch to consume the stream gives me access to the dat

Answer 1

Turns out I could get XHR to work - which doesn't really answer the request vs. fetch question. It took a few tries and the right ordering of operations to get it right. Here's the abstracted code. @jaromanda was right.

var _tryXhr = function(target, data) {
  console.log(target, data);
  var xhr = new XMLHttpRequest();

  xhr.onreadystatechange = function () {
    console.log("state change.. state: "+ this.readyState);
    console.log(this.responseText);
    if (this.readyState === 4) {
      // gets hit on completion.
    }
    if (this.readyState === 3) {
       // gets hit on new event
    }
  };

  xhr.open("POST", target);
  xhr.setRequestHeader("cache-control", "no-cache");
  xhr.setRequestHeader("Content-Type", "application/json");
  xhr.send(data);   
};