in reply to Generating a 'please wait' message

merlyn's column referred to above alludes to another technique: server push. This allows the server to send updates to the client browser any time it wants. With this technique you can even update images, to give the user an animated "experience" while waiting. A quick google search yielded a nice example at Netscape. And some perl code at this site.

This approach seems to be fairly common today and is easy to do in perl. Lack of browser support is far less common today than it was in 1977...

--traveler

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Re: Re: Generating a 'please wait' message
by merlyn (Sage) on Apr 13, 2001 at 00:47 UTC
    This approach seems to be fairly common today and is easy to do in perl. Lack of browser support is far less common today than it was in 1977...
    What browser was around in 1977? {grin}

    But as far as I can tell, the IE family has still not got any support for server push. So, server-push solutions work only when you know that the browser is non-standard in the same ways as Netscape browsers have been.

    -- Randal L. Schwartz, Perl hacker

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