WebDAV / Proxy Interoperability

There are a number of proxies available that are not familiar with the new HTTP methods specified by the WebDAV protocol. As a result, these proxies can block the HTTP request, which interferes with DAV operations.

This page lists all known proxies and a status specifying their interoperability with WebDAV.

With this page, we hope to pressue proxy developers to implement the new methods specified by RFC 2518. It would also be nice to allow administrators to configure additional methods, enabling future HTTP-based protocols such as DASL or DeltaV.

Some broadly-used clients affected by broken proxies are: Outlook Express (using HTTPMail; see support article Q259133), Internet Explorer's Web Folders, and Microsoft Office 2000. Some popular, DAV-enabled web sites that are affected by broken proxies are Driveway, Hotmail, MyDocsOnline, and Sharemation.

Home

WebDAV Working Groups
Projects and Software
Specifications
Other resources
Papers and Articles
Proxy WebDAV Support?
Microsoft Proxy 2.0 Supported
Apache 1.3 with mod_proxy Supported
Squid 2.4
This proxy works for the WebDAV methods specified in RFC 2518, but will continue to block methods that it does not understand (e.g. the REPORT method from the DeltaV extensions). However, the extension_methods configuration option can be used to add the newer methods.
Supported
Squid 2.3
This proxy works for the WebDAV methods specified in RFC 2518, but will continue to block methods that it does not understand (e.g. the REPORT method from the DeltaV extensions).
Supported
Squid 2.2
A patch is available for the Squid proxy server that adds DAV support.
Partial
Inktomi's Traffic-Server, versions 3.5.7, 4.0.x, 5.x.x Supported
Network Appliance NetCache Supported
Netscape Proxy Server
I don't know the particular version tested here.
No
Network Associate's Gauntlet No
Novell Internet Caching System Unknown

Please send updates to Greg.

Some reverse proxies may have issues with WebDAV. However, I have no data on these at this time.

I've also found a page that lists some other proxy and firewall products. It is unknown whether any of these support WebDAV.

Greg Stein
Last modified: Tue Mar 26 13:11:26 PST 2002