Javascript - Chrome extension - Webrequest - Responsebody

Question

I want to write an extension for Chrome to watch my XHR calls and I found that i have to use webRequest for this.

I want to get the response-body of the request but i never can find how to do this. Is this possible?

// chrome.browserAction.onClicked.addListener(function (tab) {
    var callback = function(details) {
        var url = details.url;

        console.log(details);
    };

    var filter = {
        urls: ["*://safan.dev/*"]
    };

    var ops = ["requestBody"];

    chrome.webRequest.onBeforeRequest.addListener(
        callback, filter, ops
    );
// });

And manifest:

{
  "manifest_version": 2,

  "name": "Forge of Empires",
  "description": "FOE",
  "version": "1.0",

  "browser_action": {
    "default_icon": "icon.png"
  },
  "permissions": [
    "webRequest",
    "<all_urls>"
  ],
  "background": {
    "scripts": ["logic.js"]
  }
}

Answer 1

I want to get the response-body of the request but i never can find how to do this. Is this possible?

Not at the moment. There is a long-standing feature request.

---

Note that you can do it using devtools.network API (requires Dev Tools to be open) or Debugger API (requires Dev Tools to be closed, low-level).