What I found is that when I remove the '.json' part of the link, it opens in browser without any issues.
I suspect that derpi might have changed a thing on their side, but I'm not sure. I'm also not sure if I'm the only one experiencing this issue.
Yes, Derpibooru has recently updated to using a new API, and removed the old one. Please update to the newest version of the downloader, which uses the new API
Hello!
In recent days an error started to occur whenever I want to use the downloader.
What I found is that when I remove the '.json' part of the link, it opens in browser without any issues. I suspect that derpi might have changed a thing on their side, but I'm not sure. I'm also not sure if I'm the only one experiencing this issue.