[Web API type definition issue] `Element.requestFullscreen` should be optional
Nobody has claimed this yet.
Assessment
- Difficulty
- 2/5
- Estimated time
- 1-3 hours
- Newbie friendliness
- 45/100
- Issue type
- Bug
- Clarity
- Mostly clear
- Activity status
- Stale
- Tech stack
- typescript
- Domain
- api
Research direction
Start by locating the Element.requestFullscreen definition in this repository and checking how optional Web API members are represented. Review the related generation or test entry point before changing anything. Done means the generated TypeScript definition permits the member to be absent and the relevant checks pass.
Written by the indexing model from the issue text.
Description
Summary
typeof document.documentElement.requestFullscreen is undefined in iOS Safari
Expected vs. Actual Behavior
typeof document.documentElement.requestFullscreen
Expected: not defined in iOS 26.0.1 Safari (and probably in the webview)
Actual: always a function
Playground Link
No response
Browser Support
- This API is supported in at least two major browser engines (not two Chromium-based browsers).
Have Tried The Latest Releases
- This issue applies to the latest release of TypeScript.
- This issue applies to the latest release of
@types/web.
Additional Context
Suggested change will enforce optional chaining for safer runtime code.
document.documentElement.requestFullscreen?.()
- Dominant language
- TypeScript
- Stars
- 740
- Forks
- 474
- Avg merge
- 2d 8h
- Merged PRs (30d)
- 15
Contributor guide
No contributing guide indexed for this repository
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
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