IFrame causing javascript code to not execute

Question

Does anyone know why this code doesn't work. This means, the alert is NOT fired

<iframe/>
<script type="text/javascript">alert('hello');</script>

While this code with the alert BEFORE the Iframe works perfeclty. This means the alert is fired

<script type="text/javascript">alert('hello');</script>
<iframe/>

Seems that no javascript placed after the iframe is executed, I don't find any logic to this.

heltonbiker · Accepted Answer · 2012-03-12 21:17:47Z

11

You need to close the <iframe> tag like this:

<iframe></iframe>
<script type="text/javascript">alert('hello');</script>

edited Mar 12, 2012 at 21:17

heltonbiker

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answered Mar 31, 2010 at 18:33

hunter

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4 Comments

Tesserex Over a year ago

I should add that the reason this is the answer is that <iframe/> is not really a valid tag. They can't be closed in that fashion.

Quentin Over a year ago

They can be closed in that fashion, but only in XHTML, and not in HTML-compatible XHTML (i.e. HTML served as text/html so that Internet Explorer will parse it because it doesn't support XHTML)

Claudio Redi Over a year ago

I have to wait some minutes in order to be allowed to accept an answer, Stack Overflow rules. Not sure why they did it like this.

eglasius Over a year ago

+1 good thing I only spent 10 minutes before searching stack overflow! :)

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