image directive doesn't accept URL as arg

[douglatornell]

I am sure that an image URL is a valid argument for the image directive,
but snooty is disagreeing:

I've confirmed in rstspec.toml that uri is a valid arg type for figure that image inherits from, but can't see where to go from there to try to debug further.

Seeing this in version 1.11.4.dev0

[lextm]

The direct cause is in parser.py that argument[0].value won't work when an URI is served. But even fixing that won't allow URI as image/figure argument, as snooty has other checks that only work for path.

Thus, I don't plan to fix it at this moment.

[douglatornell]

Thanks, @lextm. I appreciate the confirmation of the issue, the pointer to looking deeper into the code, and the context that it has a bigger, deeper root cause.