Specification

https://www.w3.org/TR/2025/REC-geolocation-20250818/

Explainer

https://www.w3.org/TR/geolocation/#introduction

Links

• The WG's request for this TAG review: https://github.com/w3c/geolocation/issues/188
• TAG review of the previous version of this specification, if any: https://github.com/w3ctag/design-reviews/issues/529
• A description of what has changed since our previous review: https://...#section

The following corrections were made:

• Correction: Clarify that only the emulated error code is used (#187)
• Correction: Use null instead of NaN when stationary (#173)
• Correction: Update acquisition algorithm to define data types and han…
• Correction: check for non-secure contexts (#157)
• Correction: Clarify units and reference geodetic system for latitude …

The following additions were made:

• Addition: support geolocation emulation (#183)
• Addition: Define units for accuracy (#162)
• Addition: expose .toJSON() on GeolocationCoordinates + GeolocationPos…

The specification

• Follows the Web Platform Design Principles.
• Includes Security and Privacy Considerations sections based on answers to the Security/Privacy Questionnaire.

Where and by whom is the work is being done?

• GitHub repo: https://github.com/w3c/geolocation/issues/191
• Primary contacts:
  • Marcos Cáceres (@marcoscaceres ), Apple, co-editor
  • Reilly Grant (@reillyeon), Google, co-editor
• Organization/project driving the specification: it's a joint deliverable of the Devices and Sensors Working Group and the Web Applications Working Group
• This work is being funded by: W3C
• Primary standards group developing this feature: it's a joint deliverable of the Devices and Sensors Working Group and the [Web Applications Working Group]
• Incubation and standards groups that have discussed the design: DAS WG, WebApps WG

Feedback so far

• Active horizontal reviews: https://github.com/w3c/security-request/issues/100, https://github.com/w3cping/privacy-request/issues/172, https://github.com/w3c/i18n-request/issues/273, https://github.com/w3c/a11y-request/issues/123
• Multi-stakeholder feedback: Geolocation is widely supported by all major browsers.
• Major unresolved issues with or opposition to this specification:
• Status/issue trackers for implementations:

You should also know that...

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