Binary Content through Gateway and Proxy fails

We are trying to deliver secured content (some in the form of images and PDFs) over our new extranet implementation. We have chosen to gateway all content (generated in Publisher) to leverage portal security. HTML content reaches the client fine; however, all binary content fails. (Images return the dreaded red X).
Analysis has shown us the following:
1) The Proxy server needs to be HTTP/1.1 compliant
2) Using Internet Explorer 6,7, the end-user needs to check the Advanced Setting option "Use HTTP 1.1 though Proxy Connections"
Both conditions MUST be true. If either condition is NOT true, the binary content fails.
Additionally, we have confirmed the following:
1) Disabling the Binary Gateway does not resolve the issue
2) Binary Content also fails in Firefox (but more testing needed)
3) Bypassing the proxy allows the binary content to succeed through.
We are running:
- ALI 5.04 (upgrading soon)
- MS ISA Server as Reverse Proxy (but tested with other proxies as well
Our business does NOT want to tell our external users they have to change their browser settings (force HTTP 1.1 through proxy connections) to be able to see content on the site. Some companies lock down these settings, and to force them to change for use is deemed to be unreasonable.
Is anyone delivering binary content (i.e. images, PDFs) through their gateway and a proxy server -- successfully?
Please let me know.
[email protected]

Hi,
I've used Bea's reverse proxy with Apache httpd and iPlanet web server without any issues many many times, sometimes in configurations way more complex that the one you are describing.
Regards,
LG
Edited by lgalfaso at 06/01/2007 7:38 PM
Edited by lgalfaso at 06/01/2007 7:39 PM

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