I am trying to create a link to download a .ics file based on the Data for iCalendar event.

Here's the code in jsfiddle which is working independently but not working in Mail which I'm sending.

<a href="data:text/calendar;charset=utf8;base64,QkVHSU46VkNBTEVOREFSDQpWRVJTSU9OOjIuMA0KQkVHSU46VkVWRU5UDQpVSUQ6ZWFhMjZhOTFmZWZkMWY0OGU0M2JkMGFhZTE1MTJlNGMNClNVTU1BUlk6w5xDUkVUU8SwWg0KRFRTVEFSVDtUWklEPUV1cm9wZS9Jc3RhbmJ1bDoyMDIxMTIzMFQxNjAwMDANCkRURU5EO1RaSUQ9RXVyb3BlL0lzdGFuYnVsOjIwMjExMjMwVDE2MDAwMA0KREVTQ1JJUFRJT046ZURhbsSxxZ9tYW4gVG9wbGFudMSxc8SxDQpMT0NBVElPTjplRGFuxLHFn21hbg0KRU5EOlZFVkVOVA0KRU5EOlZDQUxFTkRBUg==" download="event.ics">
<button type="button">iCalendar</button>
</a>

I need to download this file in e-mail content, what are your solutions?