Re: [css-fonts] About the breaking change to CSSFontFaceRule interface

On Tue, Aug 2, 2016, at 05:27 PM, Daniel Glazman wrote:
> I have only one (rather big) issue with the proposal: it's not very
> friendly with experimental features/polyfills since there is no extra
> storage room for user-defined font features... I don't think we should
> ship any more anything at grammar-level that is not extensible because
> all properties/features are hardcoded.

I think objects returned from DOM / CSSOM are not frozen in general, so
JS code should always be able to attach new attributes to those objects,
shouldn't it?

- Xidorn