WebClient has odd behavior with the host header.

[lscoughlin]

Environment Details

• Helidon Version: 2.0.0-M2
• Helidon SE or Helidon MP
• JDK version: 11.0.6
• OS: Mac OS X 10.14.6
• Docker version (if applicable): N/A

---

If you set the host header like this:

            webclient.method("GET")
                    .headers((h) -> {
                        h.put(HttpHeaderNames.HOST.toString(), "some.virtual.host");
                        return h;
                    })

it spits out two host headers like this:
host : localhost
host : some.virtual.host

If you set the host header like this:

            webclient.method("GET")
                    .headers((h) -> {
                        h.put("Host", "some.virtual.host");
                        return h;
                    })

it spits out only 1 ( correct ) host header.

[lscoughlin]

Gist showing the issue here:

[Verdent]

@lscoughlin Hi, thank you for this find :-) Actually I made fix for that and it is currently under review with some of my other changes. It should be fixed in the new release.

[Verdent]

Fixed in master

[romain-grecourt]

This will be available in the next version (2.0.0-M3)