Here is my testing.html:
<html>
<meta charset="utf-8">
<script>
window.onload = function() {
var a = document.getElementById("divid");
var ifr = document.createElement('iframe');
a.appendChild(ifr);
ifr.contentDocument.body.style.cssText = (
'margin: 0px;' +
'padding: 0px;' +
'height: 100%;' +
'width: 100%;');
}
</script>
<head></head>
<body>
<div id="divid"/>
</body>
</html>
Here ifr.contentDocument.body.style.cssText = (...) works fine on chrome but not on Firefox. Is it a firefox bug? Is there any workaround?
Found workaround: Looks like there is a weird race bug in firefox. The following workaround with setTimeout will make this work fine as shown below:
<html>
<meta charset="utf-8">
<script>
window.onload = function() {
var a = document.getElementById("divid");
var ifr = document.createElement('iframe');
ifr.id = "fid";
a.appendChild(ifr);
setTimeout (function() {
ifr.contentDocument.body.style.cssText = (
'margin: 0px;' +
'padding: 0px;' +
'height: 100%;' +
'width: 100%;');
}, 100);
}
</script>
<head></head>
<body>
<div id="divid"/>
</body>
</html>
Here is my testing.html:
<html>
<meta charset="utf-8">
<script>
window.onload = function() {
var a = document.getElementById("divid");
var ifr = document.createElement('iframe');
a.appendChild(ifr);
ifr.contentDocument.body.style.cssText = (
'margin: 0px;' +
'padding: 0px;' +
'height: 100%;' +
'width: 100%;');
}
</script>
<head></head>
<body>
<div id="divid"/>
</body>
</html>
Here ifr.contentDocument.body.style.cssText = (...) works fine on chrome but not on Firefox. Is it a firefox bug? Is there any workaround?
Found workaround: Looks like there is a weird race bug in firefox. The following workaround with setTimeout will make this work fine as shown below:
<html>
<meta charset="utf-8">
<script>
window.onload = function() {
var a = document.getElementById("divid");
var ifr = document.createElement('iframe');
ifr.id = "fid";
a.appendChild(ifr);
setTimeout (function() {
ifr.contentDocument.body.style.cssText = (
'margin: 0px;' +
'padding: 0px;' +
'height: 100%;' +
'width: 100%;');
}, 100);
}
</script>
<head></head>
<body>
<div id="divid"/>
</body>
</html>
- Here is exactly what you need: stackoverflow./questions/926916/… – Ivan Chernykh Commented May 5, 2013 at 6:01
3 Answers
Reset to default 6When you append the iframe in Firefox it starts loading about:blank in the iframe, asynchronously. Then you touch the document, so it has to synchronously create an about:blank document in there, and you modify it. Then the async load pletes and replaces the document you modified.
Waiting for the load event on the frame to fire before modifying it would work.
try this:
ifr.contentDocument.getElementsByTagName('body')[0].style.cssText = (
'margin: 0px;' +
'padding: 0px;' +
'height: 100%;' +
'width: 100%;');
also
<div id="divid"> </div>
To expand on Boris' answer, Here be Dragons!
Although this will get Firefox working, it will currently also break Chrome, Opera, Safari, and all their mobile counterparts, as they will NOT throw the 'onLoad' event as on these platforms, the iframe sits idle until used.
You will need to make this a Firefox only exception. Luckily due to Firefox's frustrating lack of features, its pretty easy to tell them apart. Just look for something the rest of the internet has but Firefox does not, or vice versa.
if(typeof InstallTrigger !== 'undefined'){ //if ie, wait sorry, firefox
iframe.onload = function(){
iframe.contentDocument.body.appendChild(contents);
}
}else{
iframe.contentDocument.body.appendChild(contents);
}
Firefox, The new Internet Explorer