The server returns no results with ES6 modules

[ShenoudaGergis]

On sublime text 3 build 3211 works well, but only with .js file extension, and returns no data with .mjs file extension even that the server runs.

{
    "clients":
    {
        "javascript-typescript-langserver":
        {
            "enabled": true
        }
    } ,
    "log_debug": true ,
    "log_stderr": true,
    "log_payloads": true,
}