Chrome 138 viewport segment media features and env variables #27387
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This was referenced Aug 12, 2025
This was referenced Aug 18, 2025
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Summary
Chrome 138 adds the Viewport Segments API, which provides a way to access the position and dimensions of logically separate viewport regions. Viewport segments are created when the viewport is split by one or more hardware features (such as a fold or a hinge between separate displays).
The API is made up of several related features:
segmentsproperty.See also the related ChromeStatus entry: https://chromestatus.com/feature/5170498990243840
This PR adds data for the second and third items listed above. (The first one is already available in the data).
Test results and supporting details
Related issues