We only know what indexOf is
Friday, 5. December 2008, 12:20:45

I'll leave you with a quote and let you draw your own conclusions.
http://my.opera.com/Andrew%20Gregory/blog/2008/05/11/opera-10-is-too-old
Originally posted by Andrew Gregory:
If you're one of those people irritated at how poorly Opera appears to handle web site scripting - this is one of the bigger reasons. It's straight-out careless programming without thought.




Andrew Gregory # 6. December 2008, 00:57
Now that the Opera 10 Alpha is out, it's time to write to the BOM *again* (third time lucky, maybe?) and see if they'll finally do something.
BTW, the Yahoo blocking is entirely server-side. There's no Javascript involved at all. That makes it simple to work around (site-specific "Mask as...").
PS. I like your cat photos!
_Grey_ # 6. December 2008, 20:00
This entire browser-sniffing business is depressing
Cyro # 7. December 2008, 12:46
Hotmail has the same behavior.
We should name this bug. Like "Opera's Millenium bug" for example. Or perhaps "Opera's two digit version bug".
_Grey_ # 7. December 2008, 16:59
Cyro # 9. December 2008, 16:09
Another example is Bank Of America.
Since it's impossible to tell all developers to fix their code on Opera, I guess Opera Software must found a way into this mess, and clear things up.