send_json sets content-length header #2810

Job	Run time
build_versions (stable)	16s
cargo-deny (aarch64-apple-ios)	7s
build_versions (beta)	21s
Test	32s
cargo-deny (aarch64-linux-android)	5s
Test	35s
build_versions (1.71.1)	16s
Test (charset)	34s
cargo-deny (i686-pc-windows-gnu)	1s
Test (cookies)	33s
Test (charset)	35s
cargo-deny (i686-pc-windows-msvc)	1s
Test (socks-proxy)	33s
cargo-deny (i686-unknown-linux-gnu)	1s
Test (cookies)	35s
Docs	1s
Test (gzip)	33s
cargo-deny (wasm32-unknown-unknown)	1s
Test (socks-proxy)	35s
Test (brotli)	35s
cargo-deny (x86_64-apple-darwin)	1s
Lint	1s
Test (gzip)	36s
Test (json)	33s
cargo-deny (x86_64-apple-ios)	1s
Test (brotli)	35s
Test (native-tls)	32s
cargo-deny (x86_64-pc-windows-gnu)	1s
Test (rustls-no-provider)	32s
Test (json)	35s
cargo-deny (x86_64-pc-windows-msvc)	1s
Test (native-tls)	35s
cargo-deny (x86_64-unknown-linux-gnu)	1s
cargo-deny (x86_64-unknown-redox)	1s
	10m 55s

Provide feedback