Infinite Scroll - Whats App Not Visible

[ilgityildirim]

Ticket: #2081
When infinite scroll kicks in and other posts are loaded on the page, WhatsApp is not visible.

[rene-hermenau]

Please give her the following custom js:

$( window ).scroll(function() {
    /* Show Whatsapp button */
    if(navigator.userAgent.match(/(iPhone)/i) || navigator.userAgent.match(/(Android)/i)){
        $('.mashicon-whatsapp').show(); 
    }
});

I think its simpler to give her the code above for integration into instead implementing it as a fix into MashShare because it would affect performance for all users.
What are your thoughts about performance and the scrolling event?
Do you have any other idea how to fix this more generally?
I