Retrieve GET requests with Javascript in Firefox console

Question

Is there a way to retrieve details of GET requests of a web page using JavaScript? I don't mean parameters of the current page's URL but out-going GET requests.

Example: If you open google's start page with firefox and toggle developer-tools, in the network tab you can see a number of GET request such as that for the logo which is something like https://www.google.com/images/branding/googlelogo/1x/googlelogo_color_272x92dp.png

I want to retrieve this URL on console tab using JavaScript. Is it possible to retrieve it via an object attached to the DOM (document) or BOM (window)?

The reason for my question is: I am in an test automation environment where developer-tools are not available. Only JavaScript is available and I need to check the URL of a GET request issued by the current page. I just mentioned developer-tools because it is the simplest way to reproduce the problem (and the easiest way to verify, if a solution works). But it is more about Firefox/HTTP than test automation as such.

Answer 1

I don't think it's possible within devtools, but you may be able to use normal JS to make a global event handler (if it's jQuery) or if using normal JS, replace the XmlHttpRequest object with a duckpunched object that logs the result, as described here.