Delphi XE3 Indy Stuck and not returning

Question

I am having trouble getting Indy to return upon certain URLS and I am not sure what is going on. I have some very simple test code to return the URL that I want and drop the HTML into a TMemo.

With IdHTTP Do
Begin
  s := Get(txtURL.Text);
  txtOutput.Lines.Add('-------' + sLineBreak + sLineBreak + s);
End;

Yet when I try it with this url :- http://nuediamonds.com/synthetic_diamond_rings.php it never returns and just locks. I added an OnWork event but all I saw in there was that the content length was always -1

Does anyone have any ideas please, I am desperately in need of solving this.

Regards Anthoni

Answer 1

The URL you showed works fine for me using the current Indy 10 SVN snapshot. It does not get stuck.

As for why the ContentLength property is -1, that happens when there is no Content-Length header present. That can happen for one of several reasons:

1. a Transfer-Encoding header is present and specifies a chunked encoding is being used. Chunked data is self-terminating.

2. a Content-Type header is present specifying MIME multipart/... data is being sent, such as multipart/byteranges. MIME is self-terminating.

3. the HTTP response is terminated by having the server close the connection.

Refer to RFC 2616 Section 4.4 "Message Length". for more details.