Fix files under 16Kb are not downloaded correctly
Fix files under 16Kb are not downloaded correctly

Fixes: https://github.com/feross/webtorrent/issues/1077

Bug originally introduced in:
https://github.com/feross/webtorrent/commit/6ef2785e4bbed07f2429725ed2b0
5bd91fc36233?diff=split

joshterrill/webtorrent,webtorrent/webtorrent,feross/webtorrent,jamesliu96/webtorrent,webtorrent/webtorrent,feross/webtorrent,jamesliu96/webtorrent,joshterrill/webtorrent