[whatwg] cloneNode and HTML elements
mjs at apple.com
Thu Sep 10 04:57:03 PDT 2009
On Sep 10, 2009, at 2:30 AM, Robert O'Callahan wrote:
> On Thu, Sep 10, 2009 at 8:13 PM, Jonas Sicking <jonas at sicking.cc>
> My assumption was always the opposite. For example for <input>
> elements we clone the 'value' API attribute, as well as the internal
> has-changed-value bit (used for form field restore when going back to
> a page).
> Looks like Opera and Webkit clone some form control state too (the
> text of text inputs, at least). Haven't tested IE, but it seems
> likely that interoperability requires at least some cloning of
> hidden state, so this does need to be specified somewhere.
> I don't particular care what the spec ends up being. For media
> elements, cloning some hidden state could be useful, but it is hard
> to implement.
Indeed, we seem to copy the following things for form controls: value,
checked state, indeterminate state. We don't seem to do anything
special for any other elements.
The change to clone form state was made based on this bug report: <https://bugs.webkit.org/show_bug.cgi?id=5177
>. The bug report cites Mozilla and IE behavior but does not mention
a real-world site depending on this, though I would presume there was
I think this behavior should be specified in HTML5.
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