<story><title>Show HN: Tricking the user to access history using CSS and captchas</title><url>http://frantzmiccoli.github.io/visited-captcha-history/</url></story><parent_chain></parent_chain><comment><author>NathanKP</author><text>Very nice concept. You should also add the following CSS to the captcha letters:&lt;p&gt;&lt;pre&gt;&lt;code&gt;     -webkit-touch-callout: none; -webkit-user-select: none; -khtml-user-select: none;
     -moz-user-select: none; -ms-user-select: none; user-select: none; 
&lt;/code&gt;&lt;/pre&gt;
This will make it feel even more like a real captcha by making it impossible to select the text. (Right now you can select it to see the invisible letters)</text></comment>
<story><title>Show HN: Tricking the user to access history using CSS and captchas</title><url>http://frantzmiccoli.github.io/visited-captcha-history/</url></story><parent_chain></parent_chain><comment><author>jere</author><text>Quite scarier than the TinSnail demo, but it must have a much lower bandwidth. The source only has three links and you will probably see all three if you have caching turned on. I guess if you&amp;#x27;re looking for one or two specific sites, it doesn&amp;#x27;t matter.</text></comment>