Develop Reference

Enable page scrolling on <canvas> element

Currently a canvas element (which is built by a third party) on my webpage is intercepting drag events (because it assumes you want to drag something within the canvas), but this can "trap" the user within the canvas, especially if they zoomed in on it on mobile. I want the user to be able to scroll/swipe up and down on the canvas to reach the rest of the page above and below it, just like it were any other HTML element. They should be able to click into the canvas still, I just don't want the canvas to intercept regular page scrolling.
EDIT: I was able to find wheel and mousewheel events in the third-party code and remove them from the canvas object, resolving the issue for desktop users. Which event would be relevant for mobile users? I tried removing touchmove without success.

your issue seems to be that you're not correctly differentiating between scrolling and dragging.
I suggest you only prevent the default scrolling when the dragging actually takes place

JQuery Scrolling event fire many time

Here is my scenario I have a web page which will navigate through using mousewheel and scrollbar. I have fixed the mousewheel problem.... But the problem where I use the scrollbar it will navigate to the end or go to the first it depending on the scrollbar you pressed up or down.
I know the error is $(window).scroll(function) here due I navigate from Div 1 to Div 2 which will fire the event a lot of times when the scroll bar moving.
Here is my fiddle
The problem is where i when i scroll using the bar beside down or up. It will trigger until the end of my onscroll event.
Is it possible when i press the scrollbar once only trigger once ?
An alternative way i know is hide the scrollbar and design a fixed position button up and down will resolve this problem but is it possible to do this with default scrollbar/overflow ?

Tried your fiddle. When using mouse wheel, it kept pending between headers 4 and 3 after I reached the 4th one. When I removed the $(window).scroll() function, it worked perfectly, both down and up.
The scrollbar, however, is quite a complicated issue - when you click/tap and drag, you simply can't "steal" the scrollbar from your pointer/finger - the user keeps dragging, yet you're trying to reposition the scrollbar/content forcibly. I don't think this is a good idea (from the UX point of view).
Not sure if it fits your requirements but in case I'd want to fully control the content, I'd completely remove the scrollbar in CSS and then use the mousewheel or swipe functions to control it.

Scroll only responds to scroll wheel when directly over scrollbar

High level: What kind of things can prevent the mouse wheel from being interpreted properly for scrolling? What are some debugging tools to check these?
I have a section of my page that is correctly displaying a vertical scroll bar. However the scroll wheel on the mouse fails to scroll the section unless the mouse is directly over the scroll bar.
What I believe is the relevant div has overflow-x: hidden and overflow-y: auto.
These are coming from the Zurb Foundation Apps CSS. I have, unfortunately, been unable to replicate this behavior within jsfiddle, so I'm hoping for further investigative tips.

This appears to relate to Foundation Apps grid-block classes. If you have a grid-block which has a single child grid-block this can somehow prevent the scroll wheel working.
I ended up replacing the child grid-block with a raw, full-width div.

I found the problem was the grid-frame class, specifically setting the height as 100vh causes the scroll wheel to bug out.
I replaced the grid-frame with a grid-block and didn't use grid-frame at all.

How to prevent people from scrolling using mouse wheel press our touch dragging?

In HTML/CSS/JS, there is one thing I am having trouble figuring out:
How to prevent people from scrolling an element using the mouse wheel press (i.e. hold down the mouse wheel and drag, or click the mousewheel, drag, click the mouse wheel again) and how to do the same when people try to drag the elements around on a touch-device.
This is something I stumble upon, amongst other places, when trying to make a hamburger-style menu.
Setting an element's CSS to overflow: hidden will hide the scroll bars, but using above two methods, it is still easy to scroll through them.
Until now, the only 'solution' I found was to make a second element, and position it on top of the element that should not be scrollable. But this hardly seems like a perfect solution to me.
How can these events be captured using JavaScript?
How can, on, for instance, this page, scrolling horizontally and vertically be blocked when the menu is open?

If you create a jsfiddle, we can give a better solution. If you are OK with jquery, I can give some solution for your second point "How can, on, for instance, this page, scrolling horizontally and vertically be blocked when the menu is open?".
First you need to create one simple class like below.
.overhidden
{
overflow:hidden !important;
}
Next, we need to apply this class when you press the menu icon on your screen. Also we need to remove if they click again for closing. It is easy to do in jquery like below.
$(document).ready(function(){
$('#hamburger').click(function(){
$('body').toggleClass('overhidden');
});
});

How to make div document selected without clicking on it using jquery ? (Auto suggest with Scrolbar)

I am working facing issue in auto suggest with scroll bar. I have to make scroll bar movable on arrow key down, mouse wheel its works fine for me. If I use document keydown event its moving my browser scroll.
I just looking for a functionality with arrow keydown scroll should move. If I click inside the div and try to move scroll bar with arrow keydown its works but if I am not clicking inside div, since document is not clicked scroll bar doesn't work.
I used slimscroll and currently working with enscroll-0.4 plugins but not able to make it fixed. Feel free to ask if you are not clear about my question.
It will be really helpful if anyone have a solution for this issue.