Access to script at 'file:///C:/.../hello.js' from origin 'null' has been blocked by CORS policy: Cross origin requests are only supported for protocol schemes: http, data, isolated-app, chrome-extension, chrome, https, chrome-untrusted. Какой он тебе, ***, кросс ориджин? Он, ***, прямо в том же каталоге лежит. ***!