title: Webpack is including a UTF charcter "φ" into the bundle which breaks my JSP page?
body: <p>I'm trying to import a react component what was bundled using webpack and a babel transform plugin.  It works fine in my Storybook setup, but when I pull that bundle into my JSP page running in Tomcat, it won't render.</p>
  
  <p>Tomcat is complaining of illegal character. When I open up web pack I see this character "φ".</p>
  
  <p>What is this and how do I fix it?</p>
  
  <p>Here's what the JSP page looks like</p>
  
  <pre><code>&lt;%@ include file="../core/include/MainInclude.jsp"%&gt;
  &lt;%@ include file="../core/include/header.jsp"%&gt;
  &lt;%@ include file="../core/include/NavBarTopReact.jsp"%&gt;
  
  &lt;section class="container container-fluid"&gt;
      &lt;%@ include file="../core/include/Banner.jsp"%&gt;
      &lt;%@ include file="../core/include/PageTitleHeader.jsp"%&gt;
      &lt;%--INSERT Page Content Here--%&gt;
  
      &lt;div id="topDiv"&gt;&lt;/div&gt;
  
      &lt;script&gt;
  
          var connect = {
              api: 'https://mine51.topcat.dev.net',
              auth: 'Basic ' + btoa('xxxxxx:yyyyyyyy'),,
              oDataString: '',
          };
  
          var header = new PfsTopNav('topDiv',connect);
  
      &lt;/script&gt;
  &lt;/section&gt;
  </code></pre>