rem: return IO.newURI(IO.newURI(aBase).resolve(aUrl)).spec; 
add:  return IO.newURI(aUrl, null, IO.newURI(aBase)).spec; 
context: function makeURLAbsolute(aBase, aUrl){  return IO.newURI(IO.newURI(aBase).resolve(aUrl)).spec;}
meta: 8395	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/8395/0a231b821d8f052cd00e1e97acd16f52e60a3a53/utilityOverlay.js/buggy/browser/base/content/utilityOverlay.js