<GitHub>
[solvespace] michthom commented on issue #124: Not really your bug to fix, more a macOS oddity? I'd assumed the URL passed back should include the extension even if the Finder isn't displaying it - but from the behaviour (I haven't traced the code properly) I'm assuming you get the bare filename and the directory only? https://github.com/solvespace/solvespace/issues/124#issuecomment-263429077