title: How to troubleshoot "The server tag is not well formed. " error on sharepoint?
body: <p>I'm trying to edit a legacy wss3 sharepoint site. </p>
  
  <p>Messing around with a 700+ code lines aspx page I got a "The server tag is not well formed." error on sharepoint and The ?content=1 trick does not work.</p>
  
  <p>Anyone has a tip on how to get to the line that's causing the problem? 
  I'm expecting something like the aspnet ysod, at least that's usefull. </p>
  
  <p>If it's worth something, I have access to the actual server.</p>
  
  <p><strong>Update:</strong> I know the error is because I screwed up the markup, as ArenB kindly points out. What I would like to get to, is to a hint on <em>where</em> on the 700 lines is the mistake.</p>
  
  <p><strong>Update 2:</strong> I found a workarround and posted it as an answer, but the question is still open waiting for someone to give an answer on how to get a more descriptive error message.</p>