title: Sharepoint - Multiple document upload - HTTP 'post' verb not allowed
body: <p>When attempting to upload any number of documents, including very small files, seems to succeed- but subsequently redirects to an error page indicating the following:</p>
  
  <pre><code>/_layouts/error.aspx?ErrorText=The%20HTTP%20verb%20POST%20used%20to%20access%20path%20%27%2F%5Fvti%5Fbin%2Fshtml%2Edll%2FSiteCollectionDocuments%2FForms%2FUpload%2Easpx%27%20is%20not%20allowed%2E
  </code></pre>
  
  <p><strong>The HTTP verb POST used to access path '/_vti_bin/shtml.dll/SiteCollectionDocuments/Forms/Upload.aspx' is not allowed.</strong></p>
  
  <p>Any ideas as to why HTTP POST would be denied for this operation?</p>
  
  <p><strong>Update:</strong></p>
  
  <p>Navigating directly to /_vti_bin/shtml.dll/SiteCollectionDocuments/Forms/Upload.aspx gives:</p>
  
  <p>The XML page cannot be displayed 
  Cannot view XML input using style sheet. Please correct the error and then click the Refresh button, or try again later. </p>
  
  <p>An invalid character was found in text content. Error processing resource '<a href="http://sitename/" rel="nofollow noreferrer">http://sitename/</a>...
  MZ</p>
  
  <p><strong>Error in event log looks like this:</strong></p>
  
  <pre><code>Critical error has occured but the exception object has already been cleared
  
  Current Url: /_vti_bin/shtml.dll/SiteCollectionDocuments/Forms/Upload.aspx
  User Login: xxxxxxx
  User is Authenticated: True
  
  Performance Counters
  % Processor Time Total: 0
  Processor Queue Length: 1
  ASP.NET Request Queued Total: 1
  .NET CLR Exceptions, # of Exceps Thrown: 55
  
  PATH_INFO: /_vti_bin/shtml.dll/SiteCollectionDocuments/Forms/Upload.aspx
  PATH_TRANSLATED: C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\12\isapi\shtml.dll
  </code></pre>