How to refresh an IFrame using Javascript?

Question

I have a webpage with an IFrame and a Button, once the button is pressed I need the IFrame to be refreshed. Is this possible, if so how? I searched and could not find any answers.

Answer 1

var iframe = document.getElementById('youriframe');
iframe.src = iframe.src;

Answer 2

This should help:

document.getElementById('FrameID').contentDocument.location.reload(true);

Answer 3

Got this from here

var f = document.getElementById('iframe1');
f.src = f.src;

Answer 4

provided the iframe is loaded from the same domain, you can do this, which makes a little more sense:

iframe.contentWindow.location.reload();