I'm getting CORS/CORB policy errors in my console
Since the font is placed on your server and then being fetched by the Upsales landing page some cross-server permissions might have to be changed on your server.
I don't have a file server to host my fonts on
Sorry but this is a requirement, Upsales does not supply hosting possibilities. Use the next best thing, Google fonts
Do I have permission to upload our fonts to a public URL?
Make sure your font license approves of you making the font publicly accessible for download and that your licence includes web-use. Upsales does not take responsibility for the rights and permissions of your custom fonts. If unsure, use Google Fonts which is natively supported by Upsales.