How to scroll to top of page with JavaScript/jQuery?

Wow, I’m 9 years late to this question. Here you go:

Add this code to your onload.

// This prevents the page from scrolling down to where it was previously.
if ('scrollRestoration' in history) {
    history.scrollRestoration = 'manual';
}
// This is needed if the user scrolls down during page load and you want to make sure the page is scrolled to the top once it's fully loaded. This has Cross-browser support.
window.scrollTo(0,0);

To run it on window load just put it wrap it like this (assumes you have JQuery referenced)

$(function() {
  // put the code here
});

history.scrollRestoration Browser support:

Chrome: supported (since 46)

Firefox: supported (since 46)

Edge: supported (since 79)

IE: not supported

Opera: supported (since 33)

Safari: supported

For IE if you want to re-scroll to the top AFTER it autoscrolls down then this worked for me:

var isIE11 = !!window.MSInputMethodContext && !!document.documentMode;
if(isIE11) {
    setTimeout(function(){ window.scrollTo(0, 0); }, 300);  // adjust time according to your page. The better solution would be to possibly tie into some event and trigger once the autoscrolling goes to the top.
}