Javascript Dynamic Script Loading IE problems
Question
I'm trying to load dynamically script with this code:
var headID = document.getElementsByTagName("head")[0];
var script = document.createElement('script');
script.type='text/javascript';
script.src="js/ordini/ImmOrd.js";
script.setAttribute("onload", "crtGridRicProd();");
headID.appendChild(script);
I need to launch crtGridRicPrdo() function when the page starts, and in FireFox all works fine but in Internet Explorer I have a problems!
5 answers
solution1
8 2011-07-04 08:26:59
Internet explorer does not support "onload" on script tags, instead it offers the "onreadystatechange" (similarly to an xhr object). You can check its state in this way:
script.onreadystatechange = function () {
if (this.readyState == 'complete' || this.readyState == 'loaded') {
crtGridRicProd();
}
};
otherwise you can call crtGridRicProd() at the end of your js file
EDIT
example:
test.js:
function test() {
alert("hello world");
};
index.html:
<!DOCTYPE html>
<html>
<head>
<title>test</title>
</head>
<body>
<script>
var head = document.getElementsByTagName("head")[0] || document.body;
var script = document.createElement("script");
script.src = "test.js";
script.onreadystatechange = function () {
if (this.readyState == 'complete' || this.readyState == 'loaded') {
test();
}
};
script.onload = function() {
test();
};
head.appendChild(script);
</script>
</body>
you will see the alert in both browser!
solution2
5 2012-10-23 13:10:05
I use the following to load scripts one after another ( async=false ):
var loadScript = function(scriptUrl, afterCallback) {
var firstScriptElement = document.getElementsByTagName('script')[0];
var scriptElement = document.createElement('script');
scriptElement.type = 'text/javascript';
scriptElement.async = false;
scriptElement.src = scriptUrl;
var ieLoadBugFix = function (scriptElement, callback) {
if ( scriptElement.readyState == 'loaded' || scriptElement.readyState == 'complete' ) {
callback();
} else {
setTimeout(function() { ieLoadBugFix(scriptElement, callback); }, 100);
}
}
if ( typeof afterCallback === "function" ) {
if ( typeof scriptElement.addEventListener !== "undefined" ) {
scriptElement.addEventListener("load", afterCallback, false)
} else {
scriptElement.onreadystatechange = function(){
scriptElement.onreadystatechange = null;
ieLoadBugFix(scriptElement, afterCallback);
}
}
}
firstScriptElement.parentNode.insertBefore(scriptElement, firstScriptElement);
}
Use it like this:
loadScript('url/to/the/first/script.js', function() {
loadScript('url/to/the/second/script.js', function() {
// after both scripts are loaded
});
});
One bugfix which the script includes is the latency bug for IE.
solution3
0 2017-08-10 11:57:24
For proberly dynamic loading a js-script (or css-file) in IE you must carefully check the path to the loaded file! The path should start from ' / ' or ' ./ '.
Be aware, that IE sometimes loses leading slash - as for instance is described here: https://olgastattest.blogspot.com/2017/08/javascript-ie.html
solution4
0 2011-07-04 08:23:45
You are loading script from external source. So you need to wait until it loads. You can call your function after id completed.
var headID = document.getElementsByTagName("head")[0];
var script = document.createElement('script'); script.type='text/javascript';
script.onload=scriptLoaded;
script.src="js/ordini/ImmOrd.js"; script.setAttribute("onload", "crtGridRicProd();");
headID.appendChild(script);
function scriptLoaded(){
// do your work here
}
solution5
0 2011-07-04 08:24:20
When I red your code, I figured out that you try to append an onload event to the script tag.
<html>
<head>
<script type="text/javascript" onLoad="crtGridRicPrdo()">
...
</script>
</head>
<body>
...
</body>
</html>
This will be the result of your javascript code. Why don't you add it to the body tag? This is the classic way and will defnatly work under IE too. This will also reduce your code:
var bodyID = document.getElementsByTagName("body")[0];
bodyID.setAttribute("onload", "crtGridRicProd();");
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