FF151 Element.requestFullScreen() option.keyboardLock docs#43884
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hamishwillee wants to merge 5 commits intomdn:mainfrom
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FF151 Element.requestFullScreen() option.keyboardLock docs#43884hamishwillee wants to merge 5 commits intomdn:mainfrom
hamishwillee wants to merge 5 commits intomdn:mainfrom
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hamishwillee
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Apr 21, 2026
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| {{embedlivesample("requesting_fullscreen_mode", , "400", "", "", "", "fullscreen")}} | ||
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| ### Using keyboard lock |
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This is new example.
- Need to know if there is a way to feature check on this option.
- This just starts it - would be good to know what we could call preventdefault on to show the change.. Asking.
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Note, right now no feature checking as far as I can tell.
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Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
FF151 adds support for the
options.keyboardlockproperty to be passed in the options object toElement.requestFullScreen()in https://bugzilla.mozilla.org/show_bug.cgi?id=2032302.This allows use cases such as games to use the Esc key (say) without exiting full screen mode.
The PR updates the docs for
Element.requestFullScreen()with the new option and a new example.It also fixes up layout issues and restructures the document to current standards - adding things like permissions policy integration and so on.
Note that right now the standard is in flux. This is broadly supprted on both FF and Safari in the same way, but things like what key is pressed to exit keyboard lock, what additional keys are intercepted, and so on, are not specified at all (and not likely to be).
Related docs work can be tracked in #43868