Cargo Features

ooproxy has no features set by default.

[dependencies]
ooproxy = { version = "1.0.3", features = ["tls"] }
tls = native-tls

Enables tls of actix-web ^0.7

Features from optional dependencies

In crates that don't use the dep: syntax, optional dependencies automatically become Cargo features. These features may have been created by mistake, and this functionality may be removed in the future.

native-tls tls?