Play 2.8.2 Lightbend Java REST example: GET returns 403

I’m trying the Play Framework (Java) REST API example behind a proxy.
When I try a command line “GET” via httpie, I get a 403.
WM-laptop1:~ $ http --verbose GET localhost:9000/v1/posts

However from Safari it works: http://localhost:9000/v1/posts

All the HTTP filters are disabled, as per the application.conf.
---------- application.conf

Number of database connections


fixedConnectionPool = 9

db.default {
driver = org.h2.Driver
url = “jdbc:h2:mem:play”

Provided for JPA access


Set Hikari to fixed size

hikaricp.minimumIdle = {fixedConnectionPool} hikaricp.maximumPoolSize = {fixedConnectionPool}

disable the built in filters

play.http.filters = play.api.http.NoHttpFilters

Job queue sized to HikariCP connection pool

post.repository {
executor = “thread-pool-executor”
throughput = 1
thread-pool-executor {
fixed-pool-size = ${fixedConnectionPool}

play.filters.disabled += “play.filters.cors.CORSFilter”

play.filters.disabled += “play.filters.hosts.AllowedHostsFilter”


lazy val root =".")).enablePlugins(PlayScala).disablePlugins(PlayFilters)

WM-laptop1:~ $ http --verbose GET localhost:9000/v1/posts

GET /v1/posts HTTP/1.1

Accept: /

Accept-Encoding: gzip, deflate

Connection: keep-alive

Host: localhost:9000

User-Agent: HTTPie/2.1.0

HTTP/1.1 403 Forbidden