Its args not opts... 🌂

src/index.js

@@ -8,9 +8,9 @@ async function readCredentials() {
   return JSON.parse(await promisify(fs.readFile)('creds.json', 'utf-8'))
 }
 
-async function readChromiumOpts() {
+async function readChromiumArgs() {
   try {
-    const data = await promisify(fs.readFile)('chromium-opts.json', 'utf-8')
+    const data = await promisify(fs.readFile)('chromium-args.json', 'utf-8')
     return JSON.parse(data)
   } catch (e) {
     return undefined
@@ -26,7 +26,7 @@ console.log('starting')
   const args = await Travian.generateArgs({
     headless: true,
     server: 'https://ts5.travian.cz/',
-    opts: await readChromiumOpts(),
+    args: await readChromiumArgs(),
   })
   const impl = Travian.travianImpl
   const travian = impl(...args)

src/travian.js

@@ -145,7 +145,7 @@ const generateArgs = async _opts => {
   if (!opts.server) throw new Error('You have to specify server')
   const browser = await puppeteer.launch({
     headless: opts.headless,
-    opts: opts.opts,
+    args: opts.args,
   })
   try {
     const page = await browser.newPage()