> On Aug 12, 2014, at 9:59 PM, Kevin Cernekee <[email protected]> wrote:
> 
> The RSS specs are a little disorganized,

Tell me about it. I think it was Mark Pilgrim who once calculated there were 
over a dozen different (and incompatible) specs for RSS and Atom. (Some of 
which even had the same version number. D––– W–––r was in the habit of changing 
the RSS 2.0 spec without bumping version numbers.)

> but 0.91 does say:
> 
>> must start with either "http://"; or "ftp://";. All other urls are
>> considered invalid.

I can believe it. RSS 0.91 is most ancient version known to Man, and it's even 
more terrible than the others. Please don't perpetuate it. RSS 2.0 should be 
somewhat less boneheaded. (Atom is much better, but it wasn't 10x better so it 
didn't catch on, unfortunately.) There's a chance that Firefox will behave 
better with relative URLs if you show it you're using a newer spec. (But I 
can't guarantee it. Parsing RSS is a black art.)

—Jens

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