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Nick Theodorakis  
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 More options Aug 2 2001, 2:33 pm
Newsgroups: alt.html
From: nicholas_theodora...@urmc.rochester.edu (Nick Theodorakis)
Date: 2 Aug 2001 11:33:08 -0700
Local: Thurs, Aug 2 2001 2:33 pm
Subject: Re: iframe confusion
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"Jukka K. Korpela" <jkorp...@cs.tut.fi> wrote in message <news:Xns90EF6FFA12FBjkorpelacstutfi@193.64.137.17>...

> Nick Theodorakis <nicholas_theodora...@urmc.rochester.edu> wrote:

> > - - on MacIE5, I got both the ifame _and_
> > the alternate content dispalyed below it.

> > By trial and error, I found that was because the alternate content
> > and the iframe were both surrounded by <p></p>, eg:
> > <p><iframe src="foobar"...><p>yada yada...</p></iframe></p>

> An interesting (an annoying) bug. I've added a note on it into my
> document on IFRAME, though currently only to the working version at
> http://www.cs.tut.fi/~jkorpela/html/iframe.html

> > Apparently (I think) MacIE5 sees the next <p>, and closes the first
> > one, thus breaking the alternate content out of the iframe.

> Sounds very probable, especially since you describe that the bug vanishes
> if you substitute div markup for the outer p markup. The browsers
> "parser" (tag soup processor) assumably gets into wrong mode, in some
> fancy way.

[Excuse the lateness of the reply; I didn't see your post on my
newsreader, but I found it on google.]

To follow up, I tried several combinations of <p></p> and <div></div>
(and a few other block-level elements) as containers for <iframe> and
alternate content to see how MacIE5 treated them. Here are the
results:

(1) When <p></p> is used as the container for <iframe>, the presence
any block-level element  that I tried (<p>, <div>, <h1>, even
<blockquote>) around the alternate content caused the alternate to be
displayed below the <iframe> when viewed by MacIE5.

(2)Using <div></div> as the container for <iframe> caused no such
problem in MacIE5; in each case the alternate content was properly
"hidden" by the <iframe>, even when <div></div> was used as the
container for the alternate content.

Accordingly, I would recommend that authors using alternate content in
an <iframe> should use <div></div> instead of <p></p> as the
block-level container for the <iframe> if they don't want the
alternate content to be displayed by MacIE5.

(Is there a place to which I should report this?)

Thanks for the discussion.

Nick


 
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