Adding "//<script>" at the start and "//</script>" at the end does resolve this issue.
The code editor see's the "//" as characters as HTML to print out to the display and then the <script> tags properly format the document.
Then when the file is properly interpreted as JS in the browser or else...
Current specs/versions
CPU Intel(R) Xeon(R) CPU E5-2660 v4 @ 2.00GHz (2 core(s))
Version Plesk Onyx v17.5.3_build1705170317.16 os_CentOS 7
OS CentOS Linux 7.4.1708 (Core)
The code editor treats *.js files as if they were *.html files. So when writing js you get horrible auto tabbing and line...