Did a particular feature triggered your message?
Would it make sense to add the question to the "Intent to Implement" email =
"Intent to" emails seem like a good time to ask this questions/raise:
* the feature is not implemented yet
* other browsers vendors are reading the "intent to" emails, so there is an=
opportunity for this question to be fixed in an interoperable manner
Le mercredi 11 janvier 2017 18:34:56 UTC+1, Boris Zbarsky a =C3=A9crit=C2=
> When adding a new API or CSS/HTML feature, please consider whether it=20
> should be disabled by default in sandboxed iframes, with a sandbox token=
> to enable.
> Note that this is impossible to do post-facto to already-shipped APIs,=20
> due to breaking compat. But for an API just being added, this is a=20
> reasonable option and should be strongly considered.