What’s the best way to reload / refresh an iframe?

document.getElementById('some_frame_id').contentWindow.location.reload();

be careful, in Firefox, window.frames[] cannot be indexed by id, but by name or index

document.getElementById('iframeid').src = document.getElementById('iframeid').src

It will reload the iframe, even across domains! Tested with IE7/8, Firefox and Chrome.

If using jQuery, this seems to work:

$('#your_iframe').attr('src', $('#your_iframe').attr('src'));

I hope it's not too ugly for stackoverflow.

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