Skip to content
Create a gist now

Instantly share code, notes, and snippets.

Embed URL


Subversion checkout URL

You can clone with
Download ZIP
Improved version of JavaScript fix for the iOS viewport scaling bug. See , also
// Original code form
var metas = document.getElementsByTagName('meta');
var i;
if (navigator.userAgent.match(/iPhone/i)) {
for (i=0; i<metas.length; i++) {
if (metas[i].name == "viewport") {
metas[i].content = "width=device-width, minimum-scale=1.0, maximum-scale=1.0";
document.getElementsByTagName('body')[0].addEventListener("gesturestart", gestureStart, false);
function gestureStart() {
for (i=0; i<metas.length; i++) {
if (metas[i].name == "viewport") {
metas[i].content = "width=device-width, minimum-scale=0.25, maximum-scale=1.6";
// My rewritten version
(function(d) {
var meta = d.querySelector('meta[name="viewport"]');
if (!meta) return;
meta.content = 'width=device-width,minimum-scale=1.0,maximum-scale=1.0';
d.addEventListener('gesturestart', function(){
meta.content = 'width=device-width,minimum-scale=0.25,maximum-scale=1.6';
}, false);

I’d love to re-use the argument var instead of creating a new one (scales), but I can’t think of a flexible enough variable name. :)


@mathiasbynens Perhaps just re-use the passed firstTime variable instead of creating the new scales? :P


@cheeaun Yeah that’s what I’m talking about. I’d have to rename the variable for clarity though, and I can’t think of a good name that makes sense.

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Something went wrong with that request. Please try again.