"stackdriver-errors-js": "^0.2.0"

import errorHandler from './error/error-reporting';

import { StackdriverErrorReporter } from 'stackdriver-errors-js';

let errorHandler;

errorHandler = new StackdriverErrorReporter();
errorHandler.start({
    key: "{{.Config.StackDriverApiKey}}",
    projectId: "{{.Config.StackDriverProject}}",
    service: "{{.Config.GoogleCloudProjectID}}",
    version: "{{.Copacknfig.GaeEnv}}",
    disabled: false
});

export default errorHandler;

[vue-devtools] Ready. Detected Vue v2.4.2
(function testErrorReporting() {window.onerror(null, null, null, null, new Error('Test: Something broke!'));})();

stackdriver-errors.js:109 Uncaught ReferenceError: StackTrace is not defined
    at StackdriverErrorReporter.webpackJsonp.556.StackdriverErrorReporter.report (stackdriver-errors.js:109)
    at window.onerror (stackdriver-errors.js:67)
    at testErrorReporting (<anonymous>:1:40)
    at <anonymous>:1:111

...
StackTrace.fromError(err).then(function(stack){
...