Fatal Error: Concurrent Map Writes

[jirevwe]

When registering a module concurrently, it panics.

github.com/dop251/goja_nodejs/require.RegisterCoreModule(...)

goja_nodejs/require/module.go

Lines 240 to 246 in 27eeffc

	func RegisterCoreModule(name string, loader ModuleLoader) {
	if builtin == nil {
	builtin = make(map[string]ModuleLoader)
	}
	name = filepathClean(name)
	builtin[name] = loader
	}