Currently, the parameters are passed as a big multi-line string that is parsed by the plugin line-by-line.

This has a consequence: passing multi-line parameters for the remote Jenkins instance does not work, only the first line ends up in the parameter

I fiddled with the code and opened a pull request with a suggestion for a fix.

You can find a more detailed description of the problem there too.

Note: While fixing the parsing, I also happened to stumble on another bug linked to it that I fixed in my PR too.