goja panics on TypeScript compiler about goja HOT 3 CLOSED

output, err := typescript.TranspileString("let a: number = 10;", nil) // output: var a = 10;

package main

import (
    "fmt"
    "io/ioutil"
    "log"

    "github.com/dop251/goja"
)

func main() {
    buf, err := ioutil.ReadFile("typescriptServices.js")
    if err != nil {
        log.Fatalln(err)
    }

    vm := goja.New()
    v, err := vm.RunString(string(buf))
    if err != nil {
        log.Fatalln(err)
    }

    str := `'' +
'interface Person {' +
'    firstName: string;' +
'    lastName: string;' +
'}' +
'' +
'function greeter(person: Person) {' +
'    return "Hello, " + person.firstName + " " + person.lastName;' +
'}' +
'' +
'var user = { firstName: "Jane", lastName: "User" };' +
'' +
'document.body.innerHTML = greeter(user);' +
''`

    v, err = vm.RunString(`
var content = ` + str + `;
var compilerOptions = { module: ts.ModuleKind.System };
var res1 = ts.transpileModule(content, {compilerOptions: compilerOptions, moduleName: 'myModule2'});
var res2 = ts.transpile(content, compilerOptions, /*fileName*/ undefined, /*diagnostics*/ undefined, /*moduleName*/ "myModule1");
res2;
`)
    if err != nil {
        log.Fatalln("compile:", err)
    }

    fmt.Println(v)
}