[webkit-dev] CSS properties vs. their JS bindings on the style object

[Tom Zakrajsek]

While investigating https://bugs.webkit.org/show_bug.cgi?id=77427, Dave and I have been trekking through the bindings code.  

Multiword CSS property names are hyphen-delimited and lower-case, while the equivalent JS binding names are camel-case.  In the implementation, our binding code is actually adding both forms.

document.body.style["fontSize"] works, but so does document.body.style["font-size"]

The presence of the ["font-size"] form in the bindings was called out as erroneous (not mentioned in the spec).  It's also not recognized by FF or Opera.  Is there any backwards compatibility issue we might not be aware of for why the style object has both bindings in WebKit?
Example

CSS	{ font-size : sSize }
Scripting           	[ sSize = ] object.style.fontSize
Thanks,
--Tom

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