[Webkit-unassigned] [Bug 20710] WebKit should support defer and async on script elements

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=20710





--- Comment #8 from kangax <kangax at gmail.com>  2009-11-22 20:51:10 PST ---
> They also don't appear to expose any programmatic way of 
> detecting whether defer is supported, something we also 
> might want to coordinate on doing.

The inference based on property existence works quite well, actually:

'defer' in document.createElement('script'); // true in 3.5+
'async' in document.createElement('script'); // true in 3.6+

// etc.

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