traced by pdb:
```
(Pdb) l
 47  	        path = '/'
 48  	    return (domain, path)
 49
 50  	def fetch_icon(key, icons, domain, path, apppath):
 51  	    #for key in manifest['icons']:
 52  ->	    iconurl = get_absolute_url(urlparse(''.join([domain, path])),
 53  	                               urlparse(icons[key]))
 54  	    icon_base64 = '';
 55  	    #fetch icon from url
 56  	    if (iconurl.startswith('http') and (iconurl.endswith(".png") or iconurl.endswith(".jpg"))):
 57  	        print key + ' from internet...',
(Pdb) print domain
https://marketplace.firefox.com
(Pdb) print path
https://marketplace.firefox.com/downloads/file/199056/game-pack-1.0.2.zip
```