[Webkit-unassigned] [Bug 50115] Please implement async=false for dynamic script loading (REGRESSION: LABjs is broken)

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=50115


Antti Koivisto <koivisto at iki.fi> changed:

           What    |Removed                     |Added
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         Depends on|51760                       |




--- Comment #52 from Antti Koivisto <koivisto at iki.fi>  2010-12-30 12:32:27 PST ---
I think async was originally specced mostly to address the basic problem that browsers would serialize loading of <script> tags. That problem no longer exist since we have figured out how to parallelize parser initiated loading.

If we do something bad with with dynamically inserted script elements (do we not serialize execution? I didn't quite get what is going wrong) then that is an important bug to fix but does not justify async.

Generally it sounds to me like async is mostly just a workaround (and an excuse) for bad or buggy regular loading behavior. The actual unique behavior (non-serialization) is a just bad idea (untestable fragility). I might be missing some big upside but it sounds to me that the best way to fix any and all async bugs would be to eliminate the feature from the specs and engines.

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