How do I clear the content of my IFRAME element, using javascript, without loading a blank page into it?
I can figure out to do this: iframe_element.src = "blank.html", but there must be a better, instant, method.
views:
1036answers:
4
+12
A:
about:blank
is a "URL" that is blank. It's always clear
You can set the page's source to that, and it will clear.
McKay
2009-11-23 18:27:51
can you give me example.. how can i do it?..
Sikender
2009-11-23 18:34:19
iframe_element.src = "about:blank"
victor hugo
2009-11-23 18:38:47
+1
A:
I have had difficulties with "about:blank" on pages with many IFrames. It does not seem to be a valid location in every browser (I never found out for sure, though). Anyway, I am happy with javascript:void(0);
Pekka
2009-11-23 18:32:16
He is specifically asking how to reset a IFrame location after Javascript. While I imagine that javascript: urls gracefully downgrade, I don't know for sure.
Pekka
2009-11-23 18:41:13
+2
A:
Your technique is the most robust. Its the one I use myself. At times content may be delivered over HTTPS and the use of about:blank can cause warning messages to appear to the effect of "do you want to include content from unsecure location" or some such thing.
Something being instant is a matter of perception however if you have a single Blank.html file on your site configured with a long cache expiry the client will only ever fetch the page once (at the most once per-session).
AnthonyWJones
2009-11-23 18:35:45
+1
A:
You could also do this:
<html>
<head>
<script>
var doc = null;
window.onload = function() {
alert("Filling IFrame");
doc = document.getElementById("test");
if( doc.document ) {
document.test.document.body.innerHTML = "<h1>test</h1>"; //Chrome, IE
}else {
doc.contentDocument.body.innerHTML = "<h1>test</h1>"; //FireFox
}
setTimeout(function() {
alert("Clearing IFrame");
if( doc.document ) {
document.test.document.body.innerHTML = ""; //Chrome, IE
}else {
doc.contentDocument.body.innerHTML = ""; //FireFox
}
}, 1000);
};
</script>
</head>
<body>
<iframe id="test" name="test">
</iframe>
</body>
</html>
Jared
2009-11-23 19:53:59