Refresh iFrame (Cache Issue)
Solution 1:
Add this in a.html and b.html
<head>
<meta http-Equiv="Cache-Control" Content="no-cache" />
<meta http-Equiv="Pragma" Content="no-cache" />
<meta http-Equiv="Expires" Content="0" />
</head>
To force no cache checks
Solution 2:
If you can add server-side instructions to those HTML files, you could send the appropriate headers to prevent caching:
Making sure a web page is not cached, across all browsers (I think the consensus is that the 2nd answer is best, not the accepted one)
Simone's answer already deals with Meta tags.
A cheap quick trick is to add a random number as a GET parameter:
page_1.html?time=102398405820
if this changes on every request (e.g. using the current time), reloading wil get forced every time, too.
Solution 3:
Try something like the following:
<script>
var frameElement = document.getElementById("frame-id");
frameElement.contentWindow.location.href = frameElement.src;
</script>
This will force the iframe to be reloaded even if it was cached by the browser
Solution 4:
I want to put Vishwas comment as a separate answer, extending Pekka’s answer
//ensure iframe is not cached
function reloadIframe(iframeId) {
var iframe = document.getElementById(iframeId);
var d = new Date();
if (iframe) {
iframe.src = iframe.src + '?ver=' + d.getTime();
//alternatively frameElement.contentWindow.location.href = frameElement.src; //This will force the iframe to be reloaded even if it was cached by the browser
}
}
reloadIframe('session_storage_check');