This is what pops up when I try to download the file, both when I first tried it and now. Only this game has given me this error and I have no idea why.
I don't have any parental limits on my computer or network, so I have to assume it's just some error. I assume most people have been able to play just the browser version and haven't needed to download the Windows build. I'm curious if the issue is unique to me, or if other people trying the download would have a similar issue.