[whatwg] Inconsistent behavior for empty-string URLs

Thu Dec 17 14:20:38 PST 2009

Simon,

Here's a list for the first four I mentioned:

<img src="">
IE 8 and earlier: makes a request
FF 3 and earlier: makes a request
FF 3.5: does not make a request
Safari 4 and earlier: makes a request
Chrome 3 and earlier: makes a request
Opera 10 and earlier: does not make a request

<link href="">
IE 8 and earlier: does not make a request
FF 3.5 and earlier: makes a request
Safari 4 and earlier: makes a request
Chrome 3 and earlier: makes a request
Opera 10 and earlier: does not make a request

<script src="">
IE 8 and earlier: does not make a request
FF 3.5 and earlier: makes a request
Safari 4 and earlier: makes a request
Chrome 3 and earlier: makes a request
Opera 10 and earlier: does not make a request

<iframe src="">
IE 8 and earlier: does not make a request
FF 3.5 and earlier: does not make a request
Safari 4 and earlier: does not make a request
Chrome 3 and earlier: does not make a request
Opera 10 and earlier: does not make a request

-Nicholas

______________________________________________
Commander Lock: "Damnit Morpheus, not everyone believes what you
believe!"
Morpheus: "My beliefs do not require them to."

-----Original Message-----
From: Simon Pieters [mailto:simonp at opera.com] 
Sent: Thursday, December 17, 2009 1:58 PM
To: Jonas Sicking
Cc: Nicholas Zakas; Maciej Stachowiak; whatwg at lists.whatwg.org; Aryeh
Gregor
Subject: Re: [whatwg] Inconsistent behavior for empty-string URLs

On Wed, 16 Dec 2009 17:21:01 +0100, Jonas Sicking <jonas at sicking.cc>
wrote:

>>> So the specific list would then be:
>>>
>>> <img>
>>> <link>
>>
>> I think only icon, prefetch and stylesheet links.
>>
>> The following element defines two links, one of which would be
ignored:
>>
>>   <link rel="icon index" href>
>
> Sounds good.
>
>>> <script>
>>> <iframe>
>>> <video>
>>
>> Including poster?
>
> Yes. Good catch.
>
>>> <audio>
>>> <object>
>>> <embed>
>>> <source>
>>> <input type=image>
>>
>> <command icon>?
>> <html manifest>?
>> <applet code>? (Maybe not, since it's more of a parameter to the Java
>> plugin.)
>> <frame src>?
>
> I don't really feel strongly about <applet> given that it's
> deprecated. But sounds good.

I asked Philip to provide some data about pages using empty attributes
for  
these:

<Philip`> zcorpan: http://philip.html5.org/data/empty-url-attributes.txt
<Philip`> zcorpan:  
http://philip.html5.org/data/empty-url-link-attributes.txt

I have not looked at these yet, but it would probably be good to do so  
before changing things, so we have an idea what the compat impact is. It

would also be good to document what browsers do today for all of these.

-- 
Simon Pieters
Opera Software