FrozenArray<dictionary>?

[jyasskin]

FrozenArray doesn't specify any restrictions on its element type, but if it contains a sequence of dictionaries, those dictionaries might be modifiable. It'd be nice to be able to specify that the contents of the FrozenArray are recursively frozen.

[domenic]

Let's dupe this against https://www.w3.org/Bugs/Public/show_bug.cgi?id=29004 which has much more discussion.