Clent side operations on mobile browser

1

on desktop browser meteor app working ok,
on mobile Android browser, client event handlers like remove, insert, etc, don’t work,
why? is it normal?
replace to Method.call?
how you adapt your app for mobile browsers?

2 
items = Cart.Items.find();
items.forEach(function(.....

in regular android browser array.forEach() don’t work,
please, advice, what can replace it?

for (var i = 0; i < items.length; i++) {
items.collection._docs._map....}

… too hard