Uber uploader flength error

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This Dreamhost support thread was started by hippyjim on 2010-04-26 14:28:41:

Post Reply? I know it’s been talked to death on this forum in the past, but all the posted solutions haven’t helped me, or were “fixed” by private IM…..so I’m asking again in the hope someone will help. I’m using uber-uploader on a standard shared account. If I disable “Enhanced security” for the subdomain the upload scripts are on, it works fine. If I re-enable them, the uploads work, but i get the “Failed to find flength file” error that’s caused by mod_security filtering things. I’ve tried lots of combinations of the .htaccess files that come with uber-uploader, along with various suggestions on the web (and this forum), and none of them have any effect. The install is fine, as without enhanced security it all just works, but *with* it, I can’t get the progress bar. I even tried using a separate subdomain just for the uploads, with mod_security disabled…but then I have problems with cross-domain javascript when I try to include that in my main site…. Anyone got suggestions? Anyone fancy holding my hand through fixing this?

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