[Tobago] No progress bar in login page

[H. Swaczinna]

Hi,

normally I see a progress bar and the page grayed out when I switch
between pages or execute long running actions. But not in my login page
when the user logs in. Maybe the page transition mechanism doesn't
work, when the page is called from outside JSF, like the login page?
Here's my code:

<tc:loadBundle basename="login" var="bundle"/>
<f:view>
  <tc:page id="loginPage" 
    width="1020px" height="600px" 
    label="#{bundle.page_label}">    
    <f:facet name="layout">
      <tc:gridLayout border="0" cellspacing="0" 
        marginTop="100px" marginLeft="375px" 
        rows="fixed" columns="260px"/>
    </f:facet>    
    <tc:box label="#{bundle.box_label}">
      <f:facet name="layout">
        <tc:gridLayout 
          rows="fixed;fixed;fixed;fixed;*"
          columns="1*;1*"/>
      </f:facet>
      <tc:cell spanX="2">
        <tc:messages/>
      </tc:cell>        
      <tc:out value="#{bundle.out_value_username}"/>
      <tc:in id="username" 
        required="true" 
        value="#{loginController.userData.username}"/>
      <tc:out value="#{bundle.out_value_password}"/>
      <tc:in id="password" 
        required="true" 
        password= "true" 
        value="#{loginController.userData.password}"/>
      <tc:cell/>
      <tc:button id="loginButton" 
        defaultCommand="true" 
        transition="true"
        label="#{bundle.button_label}" 
        action="#{loginController.login}"/>
      <tc:cell spanX="2"/>
    </tc:box>
  </tc:page>
</f:view>

Regards
Helmut