wrong captcha after IE9 sends 2 requests and cuts one off about kaptcha HOT 9 CLOSED

Forgot to mention, the requests are handled in two different threads. That's 
why sometimes the first one is cut off and sometimes the second one.

I am having the same problema. I mean, the captcha is also requested twice in 
FireFox 14.0.1. In my case, in IE9 and Chrome 21.0 works fine.

any plan to fix this issue?

As soon as there is a valid suggestion on how to fix it, I'll apply it.

Well, I said: "You should set the session attribute after the image has been 
written". I think the code should go like this:

ImageIO.write(bi, "jpg", out);
req.getSession().setAttribute(this.sessionKeyValue, capText);                
req.getSession().setAttribute(this.sessionKeyDateValue, new Date()); 

It's simple. :)

Right, but that doesn't explain why IE is requesting the image 2x. That is the 
core of the issue and that is the part that needs to be resolved.

Well, I think the core issue is that your code does not handle potential 
exceptions and leaves session attributes set incorrectly. :(

now i see your point, but i'd like to get an understanding of why ie is causing 
the server to throw that exception.

This issue was closed by revision r138.