[Plugin: Infinite-Scroll] IE8 loads correctly only when logged-in

I am also facing same problem in my site.
while searching i found mentioning that there is charset problem in ie which can be resolved by making changes in .htaccess but it doesn’t work for me.can anyone please help me to sort this issue?

Yup, I have the same problem. Non-logged in Users get the “You are at the last post”. Searching the forum for a solution.

I found a work around – a bit of javascript that disables infinite scroll on anything lower than IE 8.

Here’s the pastebin URL: https://pastebin.com/6np1HwmY

Paste that code into your custom scripts.js and enqueue it in your theme.

a work around is very simple:

open wp-content/plugins/infinite-scroll/js/behaviors/manual-trigger.js

change this:
jQuery(opts.nextSelector).click(function(e) {
if (e.which == 1 && !e.metaKey && !e.shiftKey) {
e.preventDefault();
instance.retrieve();
}
});

to this:
jQuery(opts.nextSelector).click(function(e) {
if (!e.metaKey && !e.shiftKey) {
e.preventDefault();
instance.retrieve();
}
});

The problem is IE8 do not recognizes e.which (mouse button int) it always returns 0 and don’t trigger the instance.retrieve(); and e.preventDefault();.

remember:
You must use debug=true, because if not, the plugin uses manual-trigger.min.js instead manual-trigger.js.

You can also change the manual-trigger.min.js too and use debug=true or false as desired.