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…ith Navigation API When a traversal navigation is redirected by a guard or resolver, NavigationPrecommitController.redirect() cannot be used because redirect() is only valid for push and replace navigations per the WHATWG Navigation API spec (calling it on a traversal throws InvalidStateError). To match existing History API behavior, the traversal is allowed to commit first (transitioning to the traversal entry), and then the Router initiates a replace navigation to the redirect destination.
JeanMeche
approved these changes
Oct 19, 2026
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…ith Navigation API
When a traversal navigation is redirected by a guard or resolver, NavigationPrecommitController.redirect() cannot be used because redirect() is only valid for push and replace navigations per the WHATWG Navigation API spec (calling it on a traversal throws InvalidStateError).
To match existing History API behavior, the traversal is allowed to commit first (transitioning to the traversal entry), and then the Router initiates a replace navigation to the redirect destination.