[webkit-dev] XMLHttpRequest and readyState==3

[Kalle Alm]

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Sorry for spamming the list, but thought I'd add that I've filed this as
a bug here: http://bugs.webkit.org/show_bug.cgi?id=14431

- -Kalle.


Kalle Alm wrote:
> Maciej Stachowiak wrote:
>> This is a networking layer issue - it buffers the data up to some limit
>> depending on what MIME type you send it with. Two workarounds that I
>> think will work:
>
>> 1) "prime" the connection with 256 bytes sent before any of the real
data.
>> 2) Use a MIME type that won't be subject to sniffing (I think
>> "application/xml" as opposed to "text/xml" may fit the bill).
>
> Thanks for the ideas! We tried both of these fixes (separately and in
> combination), but unless we're doing something wrong, neither is
> actually working 100%:
> - In FF/linux, they all work.
> - In Safari/windows, neither works.
> - In Safari/Mac OS X, the 1+2 worked a little, but still missed some
> input.
>
> The URL for 1+2: http://www.synchroedit.com/pf1/
> The URL for 2 only: http://www.synchroedit.com/pf2/
> Sources 1+2: http://www.synchroedit.com/pf1/perl-fix-1.tar.gz
> Sources 2: http://www.synchroedit.com/pf2/perl-fix-2.tar.gz
>
> The first solution would most likely work if we increased the "garbage"
> from 256 chars to something like 512, but the overhead at 256 is already
> at something akin to 300% "more data" in transit, which sounds like a
> major performance loss. If at all possible, getting things to work
> without priming the connection would be ideal.
>
> Any ideas?
>
> -Kalle.
>
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