(It’s referring to the PSGI spec rather than Plack, but I figure the latter needs press a bit more)
Quick thought though – if a page takes a long time to generate, the stdout technique can deliver a bit at a time. Is there a plack plugin for that, or is the answer to go for ajax these day and deliver the page outline asap?
1. Namely that printing to stdout always seemed like a horrible and inefficient hack.