<div id="message" class="clearfix" style="overflow:auto; visibility:hidden;">

These are the tags which Yahoo Mail uses to display mail text. If you haven't JavaScript turned on, you can't read them.
</div>

Anja:

<div id="message" class="clearfix" style="overflow:auto; visibility:hidden;">

Isn't this just CSS, no javascript involved? 

-cw

Anja:

<div id="message" class="clearfix" style="overflow:auto; visibility:hidden;">

I assume an onload script somewhere does the moral equivalent of document.getElementById("message").style.visibility="visible" somewhere down the line. 

Anja:

 If you haven't JavaScript turned on, you can't read them.

Which would probably account for about 90% of webpages nowadays.  The WTF is that you turned it off and thought you would have a chance.

Morbii:

Anja:

 If you haven't JavaScript turned on, you can't read them.

Which would probably account for about 90% of webpages nowadays.  The WTF is that you turned it off and thought you would have a chance.

I wouldn't go as far as to say 90%

The sensible thing to do, for any company that wants accessable webpages despite a misguided desire to use javascript, is to have them visable by default, and hide them with an onload script. 

Anja:

<div id="message" class="clearfix" style="overflow:auto; visibility:hidden;">

These are the tags which Yahoo Mail uses to display mail text. If you haven't JavaScript turned on, you can't read them.
</div>

Do you know why there is nothing wrong with this?

Because as soon as you login to webmail, if you dont have javascript enabled, they warn you and redirect you to an older version of the site that does not use javascript.

So with or without javascript on, you will see your webmail.

It's even worse than it looks.  Yahoo waits for every image to load before showing the e-mail.  With added WTFs.

 
http://forums.mozillazine.org/viewtopic.php?t=516039