Tags within iframe-tag gets stripped

[davidegeland]

Insert this code:

<iframe id="foobar" src="http://www.ckeditor.com" frameborder="0" width="100%"><p>If you can read this, your browser doesn't support frames. <a href="http://www.ckeditor.com">Click here</a>.</p></iframe> 

An extra iframe is generated, and all other tags are stripped from inside the <iframe>-tag.

If you remove the <p>-tag from the inside of the <iframe>-tag, no extra iframe is generated, but all other tags are still stripped.

[Jakub Ś]

What you are trying to do is using invalid HTML syntax thus you get this weird result.

Iframe only allows normal character data to be used as its contents - ​http://www.w3.org/TR/html-markup/iframe.html#iframe.

Below code will work and is valid:

<p><iframe frameborder="0" id="foobar" src="http://www.ckeditor.com" width="100%">If you can read this, your browser doesn&#39;t support frames.</iframe></p>