Different behaviour in browser and node.js with setRequestHeader("Accept")

[mmmm1998]

https://github.com/driverdan/node-XMLHttpRequest/blob/e558b12214b134942eba13d24c79025f4850f27b/lib/XMLHttpRequest.js#L42 I have different behaviour in browser and node. I think, that is bad for "reuse of code" project target. For example, in Mozilla Firefox (57.0.4) and Chromium (63.0.3239.84 Built on Ubuntu , running on Ubuntu 16.04) result of

var req = new XMLHttpRequest(); 
req.open("GET", "http://eloquentjavascript.net/author", false); 
req.setRequestHeader("Accept", "application/json") 
req.send(null); 
console.log(req.responseText);

was { "name": "Marijn Haverbeke", "email": "[email protected]", "website": "http://marijnhaverbeke.nl" } But, if i use node (v9.4.0)

var XMLHttpRequest = require("xmlhttprequest").XMLHttpRequest
var req = new XMLHttpRequest();
req.open("GET", "http://eloquentjavascript.net/author", false);
req.setRequestHeader("Accept", "application/json")
req.send(null);
console.log(req.responseText);

result was My name is Marijn Haverbeke. You can email me at [email protected], or visit my website, http://marijnhaverbeke.nl . Maybe make variable defaultHeaders public (this.defaultHeader)? It don't change API, but programmers can change default headers before open request, if they want (i check, it works).