Opera has several different levels of cloaking, and it can really through a UA parser for a loop. Opera can declare itself solely as Opera, or as IE but still m

Opera has several different levels of cloaking, and it can really through a UA parser for a loop. Opera can declare itself solely as Opera, or as IE but still mention that it is Opera, or as Firefox but still mention it is Opera, or as IE or Firefox without mentioning it is Opera, or whatever the user wants to type in there to be clever.