[Feature request]: Support Viewport with Storybook 9

[pmwmedia]

Is your feature request related to a problem? Please describe.

Since I migrated to Storybook 9, I cannot get the desired viewport for stories anymore.

In Storybook 8, the viewport was set in parameters, which I can access in postVisit() via storyContext.parameters:
https://storybook.js.org/docs/8/essentials/viewport#defining-the-viewport-for-a-story

However, in Storybook 9, the viewport is set in globals, which I cannot access in postVisit():
https://storybook.js.org/docs/essentials/viewport#defining-the-viewport-for-a-story

Describe the solution you'd like

The cleanest solution would be if test-runner will automatically apply the default viewport of a story to the page.

Describe alternatives you've considered

Alternately, test-runner could provide all properties of globals in postVisit() via storyContext.globals.

Are you able to assist to bring the feature to reality?

no

Additional context

No response

[pmwmedia]

I found a workaround:

import type { StoryContextForEnhancers } from '@storybook/types'
import { getStoryContext } from '@storybook/test-runner'

type StoryContext = StoryContextForEnhancers & { storyGlobals ?: { viewport ?: { value : Viewport, isRotated : boolean } } }
const storyContext : StoryContext = await getStoryContext(page, context)
const viewport = storyContext.storyGlobals?.viewport