invitationUrl contains the baseUrl for the invitation(paywall). The whole url is completed by the esi tags [if lte IE 6]> <div id="ieLteSix"> <div class="ieLteSixBanner"> <table cellspacing="0" cellpadding="0"> <tbody> <tr> <td class="ieLteSixLeft"> <p class="ieFirstP">We no longer check to see whether Telegraph.co.uk displays properly in Internet Explorer version 6 or earlier.</p> <p class="ieSecondtP">To see our content at its best we recommend <a href="/browser-support/">upgrading if you wish to continue using IE or using another browser such as Firefox, Safari or Google Chrome.</a></p> </td> <td valign="top" class="ieLteSixRight"> <a href="#" id="ieX"><img width="20" height="20" border="0" alt="Hide this banner" src="/template/ver1-0/i/ieX.gif"></a> </td> </tr> </tbody> </table> </div> </div> <script language="Java...