Returns the latest form submission attempt registered under a FormSubmissionAttemptContextProvider. Safe to call without a provider: preparation is skipped and the promise resolves with a no-op FormSubmissionAttemptAllowNavigation.
Returns the latest form submission attempt registered under a FormSubmissionAttemptContextProvider. Safe to call without a provider: preparation is skipped and the promise resolves with a no-op FormSubmissionAttemptAllowNavigation.