Open Bug 1575690 Opened 5 years ago Updated 1 year ago

visualViewport leaks the onscreen keyboard height

Categories

(Core :: Panning and Zooming, enhancement, P3)

Product:
Core
Component:
Panning and Zooming
Type:
enhancement

Tracking

()

Status:
UNCONFIRMED

People

(Reporter: kolan_n, Unassigned)

References

(Blocks 1 open bug)

Details

(Whiteboard: [tor-mobile][fingerprinting][fp-triaged])

User-interface features like the on-screen keyboard (OSK) can shrink the visual viewport without affecting the layout viewport.

This way info about keyboard height can be leaked. So it is proposed to add some mititgations to the spec, s.a. not changing visualViewport on keyboard (de)activations.

Here is the issue: https://github.com/WICG/visual-viewport/issues/63

Component: General → Panning and Zooming
Product: Firefox for Android → Core
Blocks: uplift_tor_fingerprinting
Priority: -- → P3
See Also: → https://bugzilla.mozilla.org/show_bug.cgi?id=1551302, https://bugzilla.mozilla.org/show_bug.cgi?id=1209426
Summary: visualViewport can be a privacy issue → visualViewport leaks the onscreen keyboard height
Whiteboard: [tor-mobile][fingerprinting][fp-triaged]

Thanks for the report. We will monitor the spec issue for any spec changes in this area.

Severity: normal → S3
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