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Route-controlled sheet

Open from URL state, cold-open without a trigger, and update navigation only after exit motion completes.

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Settings belong to the route.

Open the sheet, then use browser Back. The URL remains the source of truth.

The route is settled.

What stays true

  • URL state owns open
  • Explicit focus targets
  • Navigation follows exit completion

Try it deliberately

  • Reload with ?panel=settings to exercise the triggerless path.
  • The real trigger wins when it exists; the page landmark is the cold-open fallback.