[mr_mitm]

I suppose it's not efficient in that sense. As I said, the browser has to unpack the whole thing first, so you see a spinner when opening large files. But it's inserted into the DOM on demand, so it's not overwhelming the browser because it's just a blob in memory.

[gwern]

OK, so your format doesn't solve the trilemma; you have 'static' and 'single-file', but not 'efficient'. Seems like you might as well just go with MHT or SingleFile then...?