documentcloud/underscore — comment on commit e79586515c5f635650afc32976826e01463dcd1d
File: underscore.js line 677
By michaelficarra:

> when comparing otherwise equivalent objects from different frames

Ah, I had almost forgotten about that until you brought it up.

> However, the case can be made that objects from different frames shouldn't be considered equivalent anyway.

I think that's a reasonable result.