What does the browser do when the source of iframe is javascript

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渐次进展 2021-01-05 05:05

When the source of an iframe is:

javascript:\'\';

as in:

</script>
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                <span>(楼主)</span>
            
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                <span>2021-01-05 06:00</span>
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<p>To the best of my knowledge the <code>src</code> attribute maps to the <code>iframe</code> elements <code>location.href</code>.  So setting <code>src</code> to <code>javascript:'';</code> is a bit nonsensical and the browser will do one of two things:</p>

<ul>
<li>Ignore it because it is not a URI and does not resolve to any displayable resource</li>
<li>Execute the javascript which produced nothing</li>
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<p>Either way you accomplish very little.  Is this code you inherited or are you trying to do something tricky with the <code>iframe</code>?</p>
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