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wrappingS-DM.js File Reference
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Wrappers for navigator.deviceMemory property. More...

Detailed Description

Wrappers for navigator.deviceMemory property.

See also
https://xhr.spec.whatwg.org/
Author
Copyright (C) 2019 Libor Polcak
Copyright (C) 2021 Matus Svancar
License:
SPDX-License-Identifier: GPL-3.0-or-later
License:
SPDX-License-Identifier: MPL-2.0

This file contains wrapper for navigator.deviceMemory https://developer.mozilla.org/en-US/docs/Web/API/Navigator/deviceMemory

The goal is to prevent fingerprinting by modifying return value of navigator.deviceMemory parameter.

This wrapper operates with three levels of protection:

  • (0) - return random valid value from range [0.25 - real value]
  • (1) - return random valid value from range [0.25 - 8]
  • (2) - return 4

These approaches are inspired by the algorithms created by Brave Software https://brave.com available at https://github.com/brave/brave-core/blob/master/chromium_src/third_party/blink/renderer/core/frame/navigator_device_memory.cc