CanDeactivate changing the window history

问题

I am facing some issue with canDeactivate() whenever it returns false it is changing the window history as when it became true and if i hit the back button. I am navigating to some other URL or out of the app itself.

Please help me

回答1:

Here is the issue, but it still isn't fixed.

As a workaround, you can manually put the active url back to the history:

export class CanDeactivateGuard implements CanDeactivate<any> {
    constructor(
        private readonly location: Location,
        private readonly router: Router
    ) {}

    canDeactivate(component: any, currentRoute: ActivatedRouteSnapshot): boolean {
        if (myCondition) {
            const currentUrlTree = this.router.createUrlTree([], currentRoute);
            const currentUrl = currentUrlTree.toString();
            this.location.go(currentUrl);
            return false;
        } else {
            return true;
        }
    }
}

来源：https://stackoverflow.com/questions/46448133/candeactivate-changing-the-window-history