Quoting Ian Hickson <[EMAIL PROTECTED]>:
http://whatwg.org/specs/web-apps/current-work/#todataurl0 defines that
for unsupported values UAs must return PNG. How about returning null
instead for unsupported types? Where there any reasons to go with
something else?
If you want a data: URL, you primarily want a data: URL. The type is
secondary. Thus getting null is never useful.
If you want data: URL of a specific type, you primarily want a data:
URL of a specific type. (Otherwise you would just do toDataURL()
without mentioning the type at all and get a nice PNG back.) Doing
string checks to see if that succeeded is more error prone than just
doing `if(c.toDataURL(test))` or a try/catch(e) statement.
--
Anne van Kesteren
<http://annevankesteren.nl/>
