[whatwg] iframe sandbox attribute

Ian Hickson ian at hixie.ch
Mon Mar 26 15:14:40 PDT 2012

On Mon, 26 Mar 2012, Ian Melven wrote:
> While working on implementing HTML5's iframe sandbox, I realized that in 
> script, one can't tell the difference between these two cases : <iframe> 
> and <iframe sandbox = ''>.
> In both cases, iframe.sandbox will be '' (the empty string). This is 
> true in Webkit and IE10's implementations, as far as my testing can tell 
> (and in my work-in-progress implementation for Firefox also).

Just use iframe.hasAttribute('sandbox').

The same applies to a lot of attributes in HTML, the situation is not 
unique to the sandbox="" attribute. I don't think we need to change it to 
address this issue, since there is already an API for it.

Ian Hickson               U+1047E                )\._.,--....,'``.    fL
http://ln.hixie.ch/       U+263A                /,   _.. \   _\  ;`._ ,.
Things that are impossible just take longer.   `._.-(,_..'--(,_..'`-.;.'

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