Ahaaa, referer protection. This might be the problem, though I'll have to see if it's within my control or not. If there's any way for me to, uh, circumvent that (without sounding like I'm trying to spider the site or hotlink), that would be nice. Perhaps some sort of passkey-based thing that requires a user to be logged in (sorry if you already had this idea, just trying to help)?
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