On May 16, 2009, at 11:25 AM, Mark S. Miller wrote:
On Fri, May 15, 2009 at 2:26 PM, Brendan Eich <[email protected]>
wrote:
[...] but plain old iloop DOS prevention as practiced in browsers
does *not* reload the page. And the browser APIs are full of ways
to detect
that finallys didn't run, through effects overt and covert.
[...]
Just consider iloop DOS prevention as practiced in browsers today:
finally
may not run. That's enough.
Have you tried this lately? In a squarefree shell on several browser
I typed in
var x = 8; try { while (true) {} } finally { x = 7; }
Results:
Safari promped. I told it to "stop" scripts. Afterwards, the event was
terminated, but scripts on the page were still able to run. x was 7,
indicating that finallys were executed on the way out.
I'm not sure but I think maybe the Safari behavior is a bug, as the
finally clause could contain another infinite loop.
Regards,
Maciej
_______________________________________________
es-discuss mailing list
[email protected]
https://mail.mozilla.org/listinfo/es-discuss
