My remote job has a single string parameter with a default value but when I attempt to trigger it using this plugin I get this error:

Triggering this remote job: remote-job
Not checking if the remote job remote-job is building.
This job is build #[1522] on the remote server.
Triggering remote job now.
ERROR: Remote build failed for the following reason, but the build will continue:
ERROR: Server returned HTTP response code: 400 for URL: http://remote.jenkins.server/job/remote-job/build?delay=0
Not blocking local job until remote job completes - fire and forget.

The problem is /build is used instead of /buildWithParameters

This plugin needs to use the job api to check if there are parameters and call /buildWithParameters even if the caller did not specify any parameters (the caller expects the default value to be used)

WORKAROUND:
Have the caller set a bogus parameter to make the plugin use /buildWithParameters, eg. WORKAROUND_JENKINS_22493=true