[Zope] When does http reponse begin to be sent.

[Sam Gendler]

>
>
> There is however a riding caveat: Web users are trained to be able
> to do something with partial data, to be able to act _before_ the
> entire page has been rendered.  In the IBM world above, the base
> assumption was that nothing could be done until the entire data set
> (the "frame") had been received.

Exactly.  I was speaking specifically of the web world, where all kinds of
research has shown that simply including image size attributes in your
<img> tags causes speed perception to be dramatically improved, since the
browser can render the document before the images even begin to download.  I
myself frequently click through to another page long before a page has completed
loading, partcularly if it is going slow.

--sam