Right. Async scripts aren't really asynchronous if they block all the user-visible functionality that sites currently tie to window.onload.<div><br></div><div>I don't know if we need another attribute, or if we just need to change the behavior for all async scripts. But I think the best time to fix this is now; before too many UAs implement async.</div>
<div><br></div><div>-Brian<br><div><br></div><div><br></div><div><br></div><div><br><br><div class="gmail_quote">On Thu, Feb 11, 2010 at 10:41 PM, Jonas Sicking <span dir="ltr"><jonas@sicking.cc></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
Though what we want here is a DONTDELAYLOAD attribute. I.e. we want<br>
load to start asap, but we don't want the load to hold up the load<br>
event if all other resources finish loading before this one.<br>
<font color="#888888"><br>
/ Jonas<br>
</font><div><div></div><div class="h5"><br>
On Thu, Feb 11, 2010 at 10:23 PM, Steve Souders <<a href="mailto:whatwg@souders.org">whatwg@souders.org</a>> wrote:<br>
> I just sent email last week proposing a POSTONLOAD attribute for scripts.<br>
><br>
> -Steve<br>
><br>
> On 2/10/2010 5:18 PM, Jonas Sicking wrote:<br>
>><br>
>> On Fri, Nov 6, 2009 at 4:22 PM, Brian Kuhn<<a href="mailto:bnkuhn@gmail.com">bnkuhn@gmail.com</a>> wrote:<br>
>><br>
>>><br>
>>> No one has any thoughts on this?<br>
>>> It seems to me that the purpose of async scripts is to get out of the way<br>
>>> of<br>
>>> user-visible functionality. Many sites currently attach user-visible<br>
>>> functionality to window.onload, so it would be great if async scripts at<br>
>>> least had a way to not block that event. It would help minimize the<br>
>>> affect<br>
>>> that secondary-functionality like ads and web analytics have on the user<br>
>>> experience.<br>
>>> -Brian<br>
>>><br>
>><br>
>> I'm concerned that this is too big of a departure from how people are<br>
>> used to<script>s behaving.<br>
>><br>
>> If we do want to do something like this, one possibility would be to<br>
>> create a generic attribute that can go on things like<img>,<link<br>
>> rel=stylesheet>,<script> etc that make the resource not block the<br>
>> 'load' event.<br>
>><br>
>> / Jonas<br>
>><br>
><br>
</div></div></blockquote></div><br></div></div>