Share dialogs don't open from Safari on iOS

[alligatorio]

I'm running into an odd problem on this implementation of the share button (the fushia share icon under the title): https://beee.io/retouching/palm-trees-teal-sky/

Things work perfectly on Safari, Chrome and Firefox, but on Safari on iOS nothing happens when you click on any of the social media icons. They just retract back up, but no new window opens to share the content. Same thing happens on the iOS Safari simulator, but when debugging the console doesn't spit out any error.

I know that it normally works because I have it working fine on another website, so I'm not sure what I'm doing wrong here.

Thanks in advance for any help on that!