[whatwg] Proposal for separating script downloads and execution

[Boris Zbarsky]

On 5/27/11 1:10 PM, Aryeh Gregor wrote:
> Also, consider a third possibility: currently, the part of<script
> async>  that's captured by the first timing in Ian's/Boris' example
> (whether it's parsing or compilation or whatever) blocks the main
> thread in browsers, even though it's async.  (Right?)

This is true at the moment in Gecko+Spidermonkey.  I can't speak for others.

 > Suppose that for whatever reason, it wouldn't be easy for 
implementers to move this
> work to a separate thread.  (Boris/James/other implementers: is this
> true?)

Nothing involving threads is "easy".

In Gecko's case, there is a definite desire to try to do this, but no 
timeframe yet.

-Boris