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问题:

Is there a way to replace the ENTIRE contents of an iframe using Javascript (or Jquery)?

For example if my iframe had the following content...

blah outside of html
<html>
<head>
</head>
<body>
<h1> my title </h1>
</body>
</html>
blah outside of html

..It could all be replaced by your script :)

The best that I've seen so far is this:

$(youriframe).contents().find('html').html('your content here');

but that still wouldn't replace the content outside of the html tags. We have an interesting scenario where we must assure that ALL the content is replaced.

OR a new iframe with fresh content is created and simply replaces the previous iframe.

Please no comments about the src attribute.

回答1:

I am having the same issue, and if i use the code like this:

$(youriframe).contents().find('html').html('your content here');

It works fine in Chrome or FireFox, but in IE8, nothing will be showed or the scroll bar in iframe won't appear.

If i use Rachel's method, the iframe content will be like this in all browsers:

<iframe>
    <html>
        <head>
        </head>
        <body>
        </body>
    </html>
</iframe>

is there any other solution?

Tried this one:

var doc = document.getElementById(iframeId).contentWindow.document;
doc.open();
doc.write(iframeContent);
doc.close();

this works on my case, both ie8 and FF/chrome.

回答2:

I'm guessing that you're not having problems with cross-site scripting in this instance... Have you had any luck using contentWindow? Something like this seems to work well enough for me:

iframe = document.getElementById('iframe_id');
iframe.contentWindow.document.open()
iframe.contentWindow.document.write(new_content_here);

Not my idea, found it here: Write elements into a child iframe using Javascript or jQuery

回答3:

have a similar scenario, where I am generating a new iFrame with content from a different domain each time the row of a table is clicked.

To do this, I use jQuery AJAX and PHP. PHP looks at my MySQL table and gets the URL of the iFrame I want to load; it generates the HTML for an iFrame, and I use jQuery AJAX to replace that content.

My HTML looks something like this:

<div class="xFrame">
    <iframe id="xFrameWindow" name="xFrameWindow" src=""></iframe>
</div>

And my AJAX call looks like this:

function loadPage(record_id) {

    $.ajax({
        type: "POST",
        url: "php/ajax_handler.php",
        data: "action=makeIFrame&record_id=" + record_id,
        success: function(msg){
            $('.xFrame' ).html(msg);
        }
    });
}

The code replaces the HTML of the div that contains the iFrame with a new iFrame.

Hope this (or something similar) works for you.