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Google Chrome ships a default, hidden extension that allows code on *.google.com access to private APIs, including your current CPU usage (fedi.simonwillison.net)

submitted 2 months ago* (last edited 2 months ago) by [email protected] to c/[email protected]

199 comments fedilink hide all child comments

cross-posted from: https://lemmy.dbzer0.com/post/23752739

https://simonwillison.net/2024/Jul/9/hangout_servicesthunkjs/

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[–] [email protected] 39 points 2 months ago

You can check this yourself. Just paste this into the developer console:

chrome.runtime.sendMessage(
  "nkeimhogjdpnpccoofpliimaahmaaome",
  { method: "cpu.getInfo" },
  (response) => {
    console.log(JSON.stringify(response, null, 2));
  },
);

If you get a return like this, it means that the site has special access to these private, undocumented APIs

{
  "value": {
    "archName": "arm64",
    "features": [],
    "modelName": "Apple M2 Max",
    "numOfProcessors": 12,
    "processors": [
      {
        "usage": {
          "idle": 26890137,
          "kernel": 5271531,
          "total": 42525857,
          "user": 10364189
        }
      }, ...