Download doesn't work on Safari

[tedtoal]

I downloaded the code and opened index.html in Safari on OSX. Forms show up where I can select an option and press the "Generate" button, but clicking that button does nothing. I have javascript enabled. I'm suspecting that Safari by default blocks file:// javascript or something like that. If this is a common problem with Safari and this web page, it would be nice if the README file mentioned it and how to fix it.

[atoponce]

It appears that Safari doesn't like "async" when using "crossorigin". I'll dig deeper, but removing "async" from the list of <script> tags does the job.