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Internet Timeout error "12002" when AJAX takes too long to complete

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Nov 13.2007

Hi, I’m writing a Javascript that uses AJAX to call a Perl CGI script that FTPs files from one server to another. When the CGI script takes < 1 hour to complete, AJAX completes successfully and the HTML results are printed on the Web page.

However, if the CGI script takes > 1 hour to complete, I get an Internet Timeout error “12002”. The timeout on our Apache web server is already set to 2 hours, so I’m sure it’s not the web server problem.

Could it be a timeout setting in Internet Explorer? I’m using IE 6 and I read somewhere that the timeout is 60 mins. I don’t think it’s AJAX or the CGI script that’s causing the problem.

Appreciate advice on this. Any sample code will be very helpful.
Thanks!

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@toicontienNov 13.2007 — Instead of having an AJAX function running the whole time, you can initiate the file transfer via AJAX, then then once initiated, have the server send a reply back to the JavaScript saying "file transfer started." Then the AJAX function could periodically, like once a second, check to see if the file transfer has completed.
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