title: JSP error with c:url tag
body: <p>So I've got this particular form set up :</p>
  
  <pre><code>&lt;form class="navbar-form pull-right" method="post" action="&lt;c:url value="j_spring_security_check" /&gt;"&gt;
      &lt;input class="span2" type="text" placeholder="Email" name="j_username" value="&lt;c:if test="${not empty param.login_error}"&gt;&lt;c:out value="${SPRING_SECURITY_LAST_USERNAME}"/&gt;&lt;/c:if&gt;"&gt;
      &lt;input class="span2" type="password" placeholder="Password" name="j_password"&gt;
      &lt;button type="submit" class="btn"&gt;Sign In&lt;/button&gt;
  &lt;/form&gt;
  </code></pre>
  
  <p>But the form ends up looking like this :
  <img src="https://i.stack.imgur.com/1g23V.png" alt="enter image description here"></p>
  
  <p>How do I fix this? Here are my includes :</p>
  
  <pre><code>&lt;%@ taglib prefix="spring" uri="http://www.springframework.org/tags" %&gt;
  &lt;%@ taglib prefix="form" uri="http://www.springframework.org/tags/form" %&gt;
  &lt;%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %&gt;
  &lt;%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt" %&gt;
  &lt;%@ taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/functions" %&gt;
  &lt;%@ taglib prefix="html" tagdir="/WEB-INF/tags/html" %&gt;
  &lt;%@ taglib prefix="sec" uri="http://www.springframework.org/security/tags" %&gt;
  &lt;%@ taglib prefix="tiles" uri="http://tiles.apache.org/tags-tiles" %&gt;
  </code></pre>
  
  <p>A bit about my configuration- I'm using Spring MVC 3.2, Apache Tiles 3, Spring Security 3, Tomcat 7.</p>