title: XFDF URL reference to PDF form not working
body: <p>I'm populating a PDF form using XFDF. The XFDF is produced by my Java webapp. I want to reference the PDF form from XFDF using a URL because I want form templates to be stored on the server. The form is password-protected, so I can't flatten it server-side with iText.</p>
  
  <p>Using a local path works fine:</p>
  
  <pre><code>&lt;f href="C:\Users\...\MyForm.pdf"/&gt;
  </code></pre>
  
  <p>but a URL fails:</p>
  
  <pre><code>&lt;f href="http://localhost:8080/app/servlet/PdfForm?id=176"/&gt;
  </code></pre>
  
  <p>From the article below it seems it's possible, but I've looked through the XFDF spec and it doesn't mention URLs, only local paths:</p>
  
  <p><a href="http://wiki.developerforce.com/page/Adobe_XFDF" rel="nofollow">http://wiki.developerforce.com/page/Adobe_XFDF</a></p>
  
  <p>Neither Acrobat Reader X nor Acrobat Pro X seem to handle it. The browser fires up but and form doesn't get merged. I've tried changing default browser from Chrome to Firefox to IE with no luck.</p>
  
  <p>Does anyone know if a URL reference works?</p>