HTML Dual Viewer funktioniert nicht

Because every time you open a new web page, HTML source will be updated automatically, it is also useful to check the entire site.  Corresponding to search Google, it is a two-screen HTML Viewer. *Syntax Highlighter is heavy process.  *Dual View & Google Search & Syntax Highlighter HTML Viewer!!  HTML source is also updated in real time when you open a new page.  Browser screen left, the right to display the HTML source at the same time .  Unlike the HTML Viewer to display the hit URL, you can use "Google Search".  You can check the HTML source to compare left and right.  Simple, easy to use and safe operation as well, it is a handy HTML Viewer !!  Because it corresponds also "Google search", you do not need to directly hit the URL.  If loading time is too long, you had better changing background color to "Blue".