Chrome DevTools could do that?
site doesn't work in opera (either regular or opera new).<p><pre><code>  Uncaught exception: TypeError: Cannot convert 'document.body' to object
  Error thrown at line 38, column 375 in <anonymous function>() in http://www.igvita.com/slides/2012/devtools-tips-and-tricks/js/slide-deck.js:
    Modernizr.load({test:!!document.body.classList&&!!document.body.dataset,nope:['js/polyfills/classList.min.js','js/polyfills/dataset.min.js'],complete:function(){window.slidedeck=new SlideDeck();}});
  called from line 38, column 181 in http://www.igvita.com/slides/2012/devtools-tips-and-tricks/js/slide-deck.js:
    (function(){Modernizr.load({test:!!document.body.classList&&!!document.body.dataset,nope:['js/polyfills/classList.min.js','js/polyfills/dataset.min.js'],complete:function(){window.slidedeck=new SlideDeck();}});})()</code></pre>