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   RE: [xml-dev] Postel's Law Has No Exceptions

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> If they are conservative in sending, why do they produce
> non-wellformed XML?  Certain WebDAV servers seem like a perfect example
> of blatant disregard for Postel's law to me.

Postel's dictum is in fact the problem here.  If implementation
A is liberal in what it accepts and implementation B is liberal
but in different places, then finding conformance bugs in A and
B can be difficult.  It can also lead to interop problems when
implementation C is brought into the picture, and has to "work
around" the two non-overlapping liberalities.

Credit Internet Old Boy Padlipsky for first explaining this.

Rich Salz                  Chief Security Architect
DataPower Technology       http://www.datapower.com
XS40 XML Security Gateway  http://www.datapower.com/products/xs40.html
XML Security Overview      http://www.datapower.com/xmldev/xmlsecurity.html


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