id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
15531	Option to see the traffic between JOSM and OSM servers	naoliv	naoliv	"Could we have a way to see the payload that JOSM sends to OSM servers, please?

Even with `--debug` it's not possible to see what JOSM sends.
For example:

{{{
2017-11-08 11:08:34.917 INFO: POST http://master.apis.dev.openstreetmap.org/api/0.6/changeset/108073/upload (529 B) ...
2017-11-08 11:08:35.156 FINE: Uploading data ...
2017-11-08 11:08:35.396 INFO: POST http://master.apis.dev.openstreetmap.org/api/0.6/changeset/108073/upload -> 301 (380 B)
(...)
}}}

JOSM:
{{{
Relative:URL: ^/trunk
Repository:UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last:Changed Date: 2017-11-07 00:03:11 +0100 (Tue, 07 Nov 2017)
Revision:13096
Build-Date:2017-11-07 02:33:06
URL:http://josm.openstreetmap.de/svn/trunk

Identification: JOSM/1.5 (13096 en) Linux Debian GNU/Linux testing (buster)
Memory Usage: 624 MB / 7168 MB (496 MB allocated, but free)
Java version: 9.0.1+11-Debian-1, Oracle Corporation, OpenJDK 64-Bit Server VM
Screen: :0.0 1600x900, :0.1 1280x1024
Maximum Screen Size: 1600x1024
Java package: openjdk-9-jre:amd64-9.0.1+11-1
Java ATK Wrapper package: libatk-wrapper-java:all-0.33.3-13
VM arguments: [-Djosm.home=<josm.pref>, -Dawt.useSystemAAFontSettings=on]
Program arguments: [--debug, --language=en]
Dataset consistency test: No problems found
}}}"	enhancement	closed	normal	17.11	Core		fixed