Expose Response Headers

Expose Response Headers is a Chrome extension developed by Alexander Kuzmenok. According to the data from Chrome web store, current version of Expose Response Headers is 1.0.1, updated on 2017-03-02.
17 users have installed this extension. No user have rated this extension yet.

Expose the page response headers to Navigator object to make them available from Selenium and other web drivers

This is a technical extension to be used with web drivers like Selenium. It adds the so-needed functionality like providing response headers and response status code for requested urls. The available items go to Navigator object, under following properties:

navigator.requestHeaders = <array>;
navigator.requestUrl = <string>;
navigator.requestMethod = <string>;
navigator.responseHeaders = <array>;
navigator.responseStatusCode = <string>;
navigator.responseStatusLine = <string>;
navigator.responseUrl = <string>;
navigator.responseMethod = <string>;

To get those values, you typically need to get them by running a javascript in a page context, and returning the result. In Selenium, it would look something like this:

var builder = new selenium.Builder().withCapabilities(selenium.Capabilities.chrome());
var options = new selenium_chrome.Options();
options.addExtensions(__dirname + "/response-headers.crx");
builder.setChromeOptions(options);
var page = builder.build();
page.then(function() {
// load your url here
}, function(err) {
// error creating browser
});

/// then somewhere after loading the url, you would do
page.executeScript(function() {
return {
statusCode: navigator.responseStatusCode
}
}).then(function(obj) {
// now you have obj.statusCode
});

Gist example: https://gist.github.com/javascriptlove/4a00c4931c4c83287f4efd6c23fd02ed