source/bower_components/modernizr/feature-detects/unicode.js


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/**
 * Unicode special character support
 * 
 * Detection is made by testing missing glyph box rendering against star character
 * If widths are the same, this "probably" means the browser didn't support the star character and rendered a glyph box instead
 * Just need to ensure the font characters have different widths
 * 
 * Warning : positive Unicode support doesn't mean you can use it inside <title>, this seams more related to OS & Language packs
 */
Modernizr.addTest('unicode', function() {
	
	
	var bool,

		missingGlyph = document.createElement('span'),
		
		star = document.createElement('span');

	Modernizr.testStyles('#modernizr{font-family:Arial,sans;font-size:300em;}', function(node) {

		missingGlyph.innerHTML = '&#5987';
		star.innerHTML = '&#9734';		
		
		node.appendChild(missingGlyph);
		node.appendChild(star);
		
		bool = 'offsetWidth' in missingGlyph && missingGlyph.offsetWidth !== star.offsetWidth;
	});

	return bool;

});