problem with substack articles

[mfioretti]

Hi,

as per subject.
I have just installed the current version of repocketable on Ubuntu 22.04LTS.

the toEpub binary works with other website, but if I try to run e.g.:

#> ./toEpub https://danafblankenhorn.substack.com/p/the-hinge-point

all I get is this error message, and no ePUB file is created:
2024/04/18 11:08:00 Cannot fill document: bad sethttps://substackcdn.com/image/fetch/w_424

what does this exactly mean, and can it be fixed on repocketable's side?

Thanks,
M.