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I have a HTML page like this (simplified)
<html>
<head>
<style>
...
</style>
<script type ="text/javascript">
function foo()
{
...
}
</script>
</head>
<body>
<input type="button" value="ClickMe" onClick="foo()"/>
</body>
</html>
This works fine on Chrome, Firefox and Safari, but when I use IE, when I click, it returns 'foo' is undefined in the console logs. I tried moving all section inside but still got the same issue. Any hints?
EDIT 1 : here is more of my code
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<meta content="text/html;charset=utf-8" http-equiv="Content-Type"/>
<meta content="utf-8" http-equiv="encoding"/>
<title>My Title</title>
<script type="text/javascript">
function handleBrowseClick()
{
var fileinput = document.getElementById("browse");
fileinput.click();
}
function handleChange()
{
var fileinput = document.getElementById("browse");
}
function addListener()
{
document.getElementById('browse').addEventListener('change', handleFileSelect, false);
}
function handleFileSelect(evt)
{
var files = evt.target.files;
var output = [];
for (var i=0 ; f=files[i] ; i++) {
var reader = new FileReader();
reader.onload = (function(theFile) {
return function(e) {
<more JS code here>
};
})(f);
reader.readAsBinaryString(f);
}
}
</script>
</head>
<body>
<input type="file" id="browse" name="fileupload" style="display: none" onChange="handleChange();"/>
<input type="button" value="ClickMe" id="fakeBrowse" onClick="handleBrowseClick();"/>
<output id="list"></output>
</body>
</html>
<script type="text/javascript">
window.onload = addListener();
</script>
772
I had just came across the same problem.
For me, it was because the HTML had some syntax errors that Chrome (even Microsoft Edge) doesn't complain about but Internet Explorer does.
As soon as I fixed those the undefined function error was gone.
113
answered Dec 06 '25 22:12
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