Skip to content

api.Document.startViewTransition - Firefox Nightly does not support callbackOptions, only updateCallback as parameter #27594

@martrapp

Description

@martrapp

What type of issue is this?

Incorrect support data (example: BrowserX says "86" but support was added in "40")

What information was incorrect, unhelpful, or incomplete?

The table states that Firefox Nightly supports an options object as a parameter to startViewTransition.
It does only accept the update callback (Level 1 of the API), but not yet the Level 2 options object with update and types.

What browsers does this problem apply to, if applicable?

Firefox

What did you expect to see?

Red "X NO" in the row saying "callbackOptions parameter" for Firefox

Did you test this? If so, how?

devTools console: run

document.startViewTransition({update: async () => {}}) 

Firefox Nightly 143.0a1 replies:
"Uncaught TypeError: Document.startViewTransition: Argument 1 is not callable."

Can you link to any release notes, bugs, pull requests, or MDN pages related to this?

No response

Do you have anything more you want to share?

I'd open a PR too, but don't want to jump in uninvited.
Also totally fine if I'm wrong and Firefox directly ships Level 2 😊.

MDN URL

https://developer.mozilla.org/en-US/docs/Web/API/View_Transition_API

MDN metadata

MDN page report details
  • Query: api.Document.startViewTransition
  • Report started: 2025-08-15T23:10:41.643Z

Metadata

Metadata

Assignees

No one assigned

    Labels

    data:apiCompat data for Web APIs. https://developer.mozilla.org/docs/Web/APIp3Medium priority – Community PRs encouraged.

    Type

    No type
    No fields configured for issues without a type.

    Projects

    No projects

    Milestone

    No milestone

    Relationships

    None yet

    Development

    No branches or pull requests

    Issue actions