content_type = 'image/x-icon'
bookmark.icon = "data:%s;base64,%s" % (content_type, b64encode(icon_data))
icons[icon] = (content_type, bookmark.icon)
content_type = 'image/x-icon'
bookmark.icon = "data:%s;base64,%s" % (content_type, b64encode(icon_data))
icons[icon] = (content_type, bookmark.icon)