Alexander Lamaison writes:

I tried to include some code in a ticket (#9531, to be precise) and Trac tried to make me complete a captcha to prove I'm not spam. However, the captcha doesn't appear: https://drive.google.com/file/d/0B-RwWpWIiF0VRXVjTE5nM0VHekE/edit?usp=sharin...

In case it helps, the relevant part of the page source was as follows: <div id="content" class="error"> <h1>Captcha Error</h1> <p class="message">Submission rejected as potential spam (Content contained 1 blacklisted patterns)</p> <form method="post" action="/trac/boost/captcha"><div><input type="hidden" name="__FORM_TOKEN" value="b8419b68ab9ec318641fefc4" /></div> <p>Trac thinks your submission might be Spam. To prove otherwise please provide a response to the following.</p> <p><script src="http://www.google.com/recaptcha/api/challenge?k=6LcXVr8SAAAAAJnX8m-jSpqz60mSTjY6WOjJkNwm" type="text/javascript"></script><noscript><iframe width="500" height="300" frameborder="0" src="http://www.google.com/recaptcha/api/noscript?k=6LcXVr8SAAAAAJnX8m-jSpqz60mSTjY6WOjJkNwm"></iframe><br /><textarea rows="3" cols="40" name="recaptcha_challenge_field"></textarea><input type="hidden" name="recaptcha_response_field" value="manual_challenge" /></noscript></p> </form> </div> -- Swish - Easy SFTP for Windows Explorer (http://www.swish-sftp.org)