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Editorial Team
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Asked: 2026-06-11T03:12:46+00:00

In chrome if I have HTML as a string in a var named html

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In chrome if I have HTML as a string in a var named html I can easily just load it into an iframe and have the iframe execute that html page (with whatever css/jss/etc it might contain) by doing:

window.sHTML = html;
iframe.src = javascript:parent.sHTML

In Firefox this doesn’t work at all. Is there a way to do this that works in firefox? Note that I need the JS to execute properly in the iframe. For example this fiddle http://jsfiddle.net/9k9Pe/2/ kind of does what I want but if there is a script tag inside the html then that breaks things.

UPDATE: This actually does work in firefox, it just interacts differently with window.location which was breaking my code.

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1 Answer

  1. Editorial Team

    Answering my own question:

    window.sHTML = html;
iframe.src = javascript:parent.sHTML

    This actually does work in firefox, it just interacts differently with window.location which was breaking my code.

    To go into more detail, in chrome if you do

    iframe.src = www.foo.com/bar.html
window.sHTML = html;
iframe.src = javascript:parent.sHTML

    Then the iframe will execute the html in the html string but its window.location will remain http://www.foo.com/bar.html and relative links will be treated as though the iframe were from http://www.foo.com/bar.html

    However in FF the window.location becomes javascript:parent.sHTML and relative links will no longer work the way one expects.

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