Implicit or explicit navigation using p|h:commandXxx with action

Question

The managed bean involved.

@Named
@ViewScoped
public class Bean implements Serializable {

    public Bean() {}

    private static final long serialVersionUID = 1L;

    public String navigate() {
        System.out.println("navigate() invoked.");
        // This method carries some logic here.
        return "/ContextPath/location/page.xhtml?faces-redirect=true";
    }
}

Now, using a command component with action is expected to redirect to a said resource.

<h:form>
    <p:commandButton value="Submit" action="#{bean.navigate}"/>
</h:form>

This is however, always untrue no matter ajax is set to false or using another command component like <p|h:commandLink>. The action method is invoked as usual in either case but it does not perform navigation.

Replacing the action method directly with a navigation case outcome such as,

<p:commandButton value="Submit"
                 action="/ContextPath/location/page.xhtml?faces-redirect=true"/>

does not make any difference.

Is this really expected?

_{This is a kind of very basic question but I do not find at least direct answers in other already asked questions.}

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Using Mojarra 2.2.12 and PrimeFaces 5.2 (community bundle).