Problems With showing a jsp in iframe with spring security and html5

I try to embed this url in my iframe but it does not appear

<li><a href="<c:url value="./MisFinanzas.htm"/>"    
 target="ventana_iframe">Saldos</a></li>

This is my iframe:

   <iframe   src="myIframe" name="ventana_iframe" scrolling="no" 
   height="700px" 
   width="101.3%"> </iframe>

And this is the route of my controller:

  @RequestMapping(value="/secured/adm/MisFinanzas.htm")
  public String adminsMisFinanzas() {
    return "foradmins/saldo";
  }