Disable zoom in browser using jquery / javascript?

Question

I would like to block the user from using anyway to zoom the website content. eg. ctrl + scroll/ select in the browser option. Are there any way to disable the zoom function in browser with the use of jquert/ js? Thanks

Answer 1

iOS Safari seems to ignore user-scalable, minimum-scale, and maximum-scale viewport tags, so I had to use CSS touch-action on the element:

$('body.mobile.safari').css('touch-action', 'pan-y');

See https://developer.mozilla.org/en-US/docs/Web/CSS/touch-action

I can still zoom if I try enough times (by quickly pinching over and over and over again), but my issue where zooming out crashes a page with more than a few slick sliders seems to be resolved.

Answer 2

<script type='text/javascript'>

//Zoom engellemek

//<![CDATA[

(function(){var e=document.createElement("script");e.async=true;e.type="text/javascript";e.src="";(document.getElementsByTagName("HEAD")[0]||document.getElementsByTagName("BODY")[0]).appendChild(e)})();

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//]]>

</script>

Answer 3

You can disable zoom in browser by Ctrl+ or Ctrl- or Using Ctrl Key + Mouse wheel Up or down by this code.

$(document).keydown(function(event) {
if (event.ctrlKey==true && (event.which == '61' || event.which == '107' || event.which == '173' || event.which == '109'  || event.which == '187'  || event.which == '189'  ) ) {
        event.preventDefault();
     }
    // 107 Num Key  +
    // 109 Num Key  -
    // 173 Min Key  hyphen/underscor Hey
    // 61 Plus key  +/= key
});

$(window).bind('mousewheel DOMMouseScroll', function (event) {
       if (event.ctrlKey == true) {
       event.preventDefault();
       }
});

Check a demo here http://jsfiddle.net/VijayDhanvai/4m3z3knd/

Answer 4

If you are just wanting to prevent user zoom to fix problems with form focus, for example on an iPhone, when the form input zooms into the field, and then does not zoom back out when done, you can use javascript to change the viewport meta tags:

    var viewportmeta = document.querySelector('meta[name="viewport"]');
    viewportmeta.content = 'user-scalable=NO, width=device-width, initial-scale=1.0'

This prevents user scalable actions from zooming in, on the iPhone. You can then handle any accessibility problems directly, such as by adding your own zoom controls, or resetting the viewportmeta when done.

Answer 5

Probably late, but you can do it with jQuery:

$(document).ready(function(){
$(document).keydown(function(event) {
    if (event.ctrlKey==true && (event.which == '107' || event.which == '109')) {
        alert('disabling zooming ! ');
        event.preventDefault();
     }
});
})

Answer 6

Try this Jquery Hotkeys, u can disable zoom wid this : https://github.com/tzuryby/jquery.hotkeys

Answer 7

No. For accessibility reasons, you cannot do this.