Tried https://pdf-signature-puce.vercel.app/upload with Mac Safari. And there will be error report when try upload PDF file.
It doesn't work on Safari.
And debugged on my local env, look like there will be report "TypeError: Promise.withResolvers is not a function. (In 'Promise.withResolvers()', 'Promise.withResolvers' is undefined)" on loadFile
Tried https://pdf-signature-puce.vercel.app/upload with Mac Safari. And there will be error report when try upload PDF file. It doesn't work on Safari. And debugged on my local env, look like there will be report "TypeError: Promise.withResolvers is not a function. (In 'Promise.withResolvers()', 'Promise.withResolvers' is undefined)" on loadFile