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Fullscreen API - tidy overview and guide - #45265

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wbamberg merged 4 commits into
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fullscreen_tidy
Oct 30, 2026
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wbamberg merged 4 commits into
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@hamishwillee

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This updates the Fullsceen API overview and guide.

The overview

  • had a controlling access section which I have replaced with a "Security considertations" section (more complete, and used in far more places).
  • Had incorrect usage notes - that inferred you had to implement user notification about exiting, when this is handled on browsers for you.

The guide had similar information, but also omitted information about transient activation and didn't mention keyboard lock, and was incorrect about keys that can exit.

The truth is that Escape works everywhere, but even that isn't in the spec. Any other mechanisms that exit the fullscreen are also up to the browser. SO this is now clear that it's esc, and may be all these other things.

Fixes #37810

@hamishwillee
hamishwillee requested a review from a team as a code owner August 21, 2026 02:45
@hamishwillee
hamishwillee requested review from wbamberg and removed request for a team August 21, 2026 02:45
@github-actions github-actions Bot added Content:WebAPI Web API docs size/m [PR only] 51-500 LoC changed labels Aug 21, 2026
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github-actions Bot commented Aug 21, 2026 •

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(comment last updated: 2026-10-30 01:02:45)

hamishwillee and others added 3 commits October 30, 2026 12:00
Co-authored-by: wbamberg <will@bootbonnet.ca>
Co-authored-by: Hamish Willee <hamishwillee@gmail.com>
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
@hamishwillee

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Thanks @wbamberg - your changes or some variant of them accepted.

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hamishwillee requested a review from wbamberg October 30, 2026 01:02

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👍 thank you!

@wbamberg
wbamberg merged commit 9740186 into main Oct 30, 2026
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@wbamberg
wbamberg deleted the fullscreen_tidy branch October 30, 2026 08:02
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Alt+Tab will NOT exit fullscreen mode in multi-desktop environments

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