3 ms·

Doesn't seem to work on Safari (desktop or mobile) - I just get the continuous blue animation. Chrome on macOS did report the correct battery level though.

chipotle_coyote 3y ago
Yes, I think the correct headline is "This page knows your battery charge level if you're using Chrome or most Chrome-based browsers". (I'm not sure if it works on all of them, although it does work on Arc.)
- elliotec 3y ago
  Doesn’t work on brave.
  - rpastuszak 3y ago
    Does brave employ any anti fingerprinting measures?
    - goryramsy 3y ago
      Yes.
  - Obscurity4340 3y ago
    Represent ;)
  - bonestamp2 3y ago
    Works on brave for me. Any idea what setting prevents this?
    - k8sToGo 3y ago
      Not having a battery
      - andygeorge 3y ago
        Conveniently blocks all APIs
        henriquez 3y ago
        Checkmate liberals
    - elliotec 3y ago
      Do you have shields on?
      - bonestamp2 3y ago
        Yes, it says Shields are up for that page (the default until you say otherwise as far as I know). Fingerprint blocking is on. I disabled all cookies and it still works. I tried Safari and it is not working there. Pretty strange. v1.60.118
    - silisili 3y ago
      Brave for Android here. It justs reports that it's charging and 100%, neither of which are true. No extensions or weird settings.
      - rcostin2k2 3y ago
        Neither on Brave / Windows 11 (notebook)
starefossen 3y ago
Same here.
hoistbypetard 3y ago
It didn't work on Safari (desktop or mobile), Brave, Librewolf or Firefox for me. It worked on Chrome and Vivaldi.
moffkalast 3y ago
On desktop Chrome it gives me a "Charging 100%" blue animation, which I suppose is technically correct.
jakub_g 3y ago
The API is only supported in Chromium browsers [0]. It was removed from Firefox and Safari. https://developer.mozilla.org/en-US/docs/Web/API/Battery_Status_API#browser_compatibility https://developer.mozilla.org/en-US/docs/Web/API/Battery_Sta...
- zimpenfish 3y ago
  Somewhat disappointed in macOS for giving the information to Chrome. I'd figure that to be the kind of sensor you need a special entitlement to read (but it may well be tricky to enforce.)
  - internetter 3y ago
    Some browsers activate a low power mode when your battery reaches a certain threshold
    - zimpenfish 3y ago
      That should probably come from the OS as a power management event ("low power mode: on") rather than the browser being able to read the battery state directly and making its own decisions, surely.
      - internetter 3y ago
        Probably, yeah

chipotle_coyote 3y ago

Yes, I think the correct headline is "This page knows your battery charge level if you're using Chrome or most Chrome-based browsers". (I'm not sure if it works on all of them, although it does work on Arc.)

elliotec 3y ago
Doesn’t work on brave.
- rpastuszak 3y ago
  Does brave employ any anti fingerprinting measures?
  - goryramsy 3y ago
    Yes.
- Obscurity4340 3y ago
  Represent ;)
- bonestamp2 3y ago
  Works on brave for me. Any idea what setting prevents this?
  - k8sToGo 3y ago
    Not having a battery
    - andygeorge 3y ago
      Conveniently blocks all APIs
      - henriquez 3y ago
        Checkmate liberals
  - elliotec 3y ago
    Do you have shields on?
    - bonestamp2 3y ago
      Yes, it says Shields are up for that page (the default until you say otherwise as far as I know). Fingerprint blocking is on. I disabled all cookies and it still works. I tried Safari and it is not working there. Pretty strange. v1.60.118
  - silisili 3y ago
    Brave for Android here. It justs reports that it's charging and 100%, neither of which are true. No extensions or weird settings.
    - rcostin2k2 3y ago
      Neither on Brave / Windows 11 (notebook)

starefossen 3y ago

Same here.

hoistbypetard 3y ago

It didn't work on Safari (desktop or mobile), Brave, Librewolf or Firefox for me. It worked on Chrome and Vivaldi.

moffkalast 3y ago

On desktop Chrome it gives me a "Charging 100%" blue animation, which I suppose is technically correct.

jakub_g 3y ago

The API is only supported in Chromium browsers [0]. It was removed from Firefox and Safari. https://developer.mozilla.org/en-US/docs/Web/API/Battery_Status_API#browser_compatibility https://developer.mozilla.org/en-US/docs/Web/API/Battery_Sta...

zimpenfish 3y ago
Somewhat disappointed in macOS for giving the information to Chrome. I'd figure that to be the kind of sensor you need a special entitlement to read (but it may well be tricky to enforce.)
- internetter 3y ago
  Some browsers activate a low power mode when your battery reaches a certain threshold
  - zimpenfish 3y ago
    That should probably come from the OS as a power management event ("low power mode: on") rather than the browser being able to read the battery state directly and making its own decisions, surely.
    - internetter 3y ago
      Probably, yeah