[Alex.Gabriel]

Script used by you transforms all the url's from a page from site.com to hidesurf.blabla so youtube player get's the video url as hidesurf.bla.bla.. link that does not exist .

Here is a part of your code that actualy changes site code.

// Extract a base tag
	 if ( (parser = /<base href(?==)=["']?([^"' >]+)['"]?(>|\/>|<\/base>)/i.exec(html)) ) {
		  ginf.target.b = parser[1]; // Update base variable for future parsing
		  if ( ginf.target.b.charAt(ginf.target.b.length-1) != '/' ) // Ensure trailing slash
				ginf.target.b += '/'; 
		  html = html.replace(parser[0],''); // Remove from document since we don't want the unproxied URL
	 }