When the overflow-y property is set to hidden, the page unexpectedly scrolls to the top in Firefox

Question

When the overflow-y property is set to hidden, the page unexpectedly scrolls to the top in Firefox

I have a javascript code that is responsible for opening modal popups on my website. It also manipulates the overflow-y property of the <html> element by setting it to hidden. Interestingly, in Chrome and IE, this functionality works as intended. The scrollbar disappears, and the page behind the modal popup retains its scroll position. Upon closing the popup, the overflow-y property is reverted back to scroll, keeping the page in its original state and position.

However, in Firefox, once the overflow-y property is changed to hidden, the page automatically scrolls to the top. This results in a change in view for the user when the popup is closed, which is not the desired behavior.

You can observe this issue in action by visiting this jsfiddle link

Is there a solution available to resolve this inconsistency in behavior across different browsers?

javascript css overflow

Answer 1

Answer №1

Avoid using overflow: hidden on the html element and use it exclusively on the body element. I encountered a similar issue and resolved it by eliminating the use of html.

Alternatively :

$('body, html').css('overflow', 'hidden');

Instead, try :

$('body').css('overflow', 'hidden');

Answer 2

Avoid using overflow: hidden on the html element and use it exclusively on the body element. I encountered a similar issue and resolved it by eliminating the use of html.

Alternatively :

$('body, html').css('overflow', 'hidden');

Instead, try :

$('body').css('overflow', 'hidden');

Answer 3

Answer №2

I encountered a similar problem when I looked into it in the inspector window, I noticed that the reset CSS was setting HTML to

HTML {
    overflow-y: scroll;
}

To resolve this, you can change it to

HTML {
    overflow-y: initial;
}

If you prefer not to modify the reset CSS, you can simply comment it out

The plugin and code are working perfectly

Answer 4

I encountered a similar problem when I looked into it in the inspector window, I noticed that the reset CSS was setting HTML to

HTML {
    overflow-y: scroll;
}

To resolve this, you can change it to

HTML {
    overflow-y: initial;
}

If you prefer not to modify the reset CSS, you can simply comment it out

The plugin and code are working perfectly

Answer 5

Answer №3

Update modal placement to fixed instead of absolute:

#mymodal {
    position: fixed
 }

Answer 6

Update modal placement to fixed instead of absolute:

#mymodal {
    position: fixed
 }

Answer 7

Answer №4

There are numerous bugs found in various browsers, making the functionality inconsistent when modifying styles on body and html tags. It is important to proceed with caution.

To overcome this issue, I had to encapsulate the content of the body within its own element and impose a restriction on scrolling:

var $content = $('<div/>').append($body.contents()).appendTo($body);
$content.css('overflow-y', 'hidden');

This method has proven to be the most effective in ensuring consistent functionality across different browsers and devices.

Answer 8

There are numerous bugs found in various browsers, making the functionality inconsistent when modifying styles on body and html tags. It is important to proceed with caution.

To overcome this issue, I had to encapsulate the content of the body within its own element and impose a restriction on scrolling:

var $content = $('<div/>').append($body.contents()).appendTo($body);
$content.css('overflow-y', 'hidden');

This method has proven to be the most effective in ensuring consistent functionality across different browsers and devices.

Answer 9

Answer №5

When facing a similar issue, I came up with a solution:

/**
 * To prevent the page from jumping to the top when applying overflow:hidden to the body, we store the scroll top position
 * @type int
 */
var scrollTopPosition;

$(menuSelector).unbind('click.openmenu').on('click.openmenu', function (event) {
    // Actions to be taken
    scrollTopPosition = $('body').scrollTop() || $('html').scrollTop();
    $('body, html').css({overflow: 'hidden'});
});

$(menuSelector).unbind('click.closemenu').on('click.closemenu', function (event) {
    // Actions to be taken
    $('body, html').css({overflow: 'initial'}).scrollTop(scrollTopPosition);
});

However, keep in mind that this solution does not address the issue of what happens when a user resizes the viewport.

Answer 10

When facing a similar issue, I came up with a solution:

/**
 * To prevent the page from jumping to the top when applying overflow:hidden to the body, we store the scroll top position
 * @type int
 */
var scrollTopPosition;

$(menuSelector).unbind('click.openmenu').on('click.openmenu', function (event) {
    // Actions to be taken
    scrollTopPosition = $('body').scrollTop() || $('html').scrollTop();
    $('body, html').css({overflow: 'hidden'});
});

$(menuSelector).unbind('click.closemenu').on('click.closemenu', function (event) {
    // Actions to be taken
    $('body, html').css({overflow: 'initial'}).scrollTop(scrollTopPosition);
});

However, keep in mind that this solution does not address the issue of what happens when a user resizes the viewport.

Answer 11

Answer №6

After reviewing your code, it appears that using a link with href="#" may be the root of the issue. I recommend either removing the href property or using a button instead.

It's important to note that the issue may not be related to the CSS itself. In my own experience, the jump to the top was caused by the presence of "#" in the href property of the link used to open the popup:

<a href="#">open popup</a>

To resolve the issue, I removed the "#" and added a "noscroll" class to my html and body tag:

.noscroll {
    overflow: hidden;
}

Answer 12

After reviewing your code, it appears that using a link with href="#" may be the root of the issue. I recommend either removing the href property or using a button instead.

It's important to note that the issue may not be related to the CSS itself. In my own experience, the jump to the top was caused by the presence of "#" in the href property of the link used to open the popup:

<a href="#">open popup</a>

To resolve the issue, I removed the "#" and added a "noscroll" class to my html and body tag:

.noscroll {
    overflow: hidden;
}

Answer 13

Answer №7

My issue was resolved by setting the initial body height to 100%.

body{
   height:100vh;
   overflow:auto;
}
body.with-modal{
   overflow:hidden;
}

Answer 14

My issue was resolved by setting the initial body height to 100%.

body{
   height:100vh;
   overflow:auto;
}
body.with-modal{
   overflow:hidden;
}

Answer 15

Answer №8

Recommendation: Use the body tag instead of the html tag.

Check out this JS Fiddle for reference: http://jsfiddle.net/SBLgJ/6/

JS Change:-

$(document).ready(function() {
    $('#middle a').on('click', function(e) {
        e.preventDefault();
        $('body').css('overflow-y', 'hidden');  
    });
});

CSS Change:-

body {
    overflow-y:scroll;
}

It has been noted that there is an issue reported for this behavior. (https://github.com/necolas/normalize.css/issues/71)

Answer 16

Recommendation: Use the body tag instead of the html tag.

Check out this JS Fiddle for reference: http://jsfiddle.net/SBLgJ/6/

JS Change:-

$(document).ready(function() {
    $('#middle a').on('click', function(e) {
        e.preventDefault();
        $('body').css('overflow-y', 'hidden');  
    });
});

CSS Change:-

body {
    overflow-y:scroll;
}

It has been noted that there is an issue reported for this behavior. (https://github.com/necolas/normalize.css/issues/71)

When the overflow-y property is set to hidden, the page unexpectedly scrolls to the top in Firefox

Answer №1

Answer №2

Answer №3

Answer №4

Answer №5

Answer №6

Answer №7

Answer №8

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