[whatwg] should async scripts block the document's load event?

[Steve Souders]

I just sent email last week proposing a POSTONLOAD attribute for scripts.

-Steve

On 2/10/2010 5:18 PM, Jonas Sicking wrote:
> On Fri, Nov 6, 2009 at 4:22 PM, Brian Kuhn<bnkuhn at gmail.com>  wrote:
>    
>> No one has any thoughts on this?
>> It seems to me that the purpose of async scripts is to get out of the way of
>> user-visible functionality.  Many sites currently attach user-visible
>> functionality to window.onload, so it would be great if async scripts at
>> least had a way to not block that event.  It would help minimize the affect
>> that secondary-functionality like ads and web analytics have on the user
>> experience.
>> -Brian
>>      
> I'm concerned that this is too big of a departure from how people are
> used to<script>s behaving.
>
> If we do want to do something like this, one possibility would be to
> create a generic attribute that can go on things like<img>,<link
> rel=stylesheet>,<script>  etc that make the resource not block the
> 'load' event.
>
> / Jonas
>