fix(browserless): pass context options

README.md

@@ -166,6 +166,10 @@ Every browser context is isolated. They won't share cookies/cache with other bro
 
 #### options
 
+Any [browser.createIncognitoBrowserContext#options](https://pptr.dev/next/api/puppeteer.browsercontextoptions) can be passed.
+
+Additionally, you can setup:
+
 ##### retry
 
 type: `number`</br>

packages/browserless/src/index.js

@@ -58,8 +58,8 @@ module.exports = ({ timeout: globalTimeout = 30000, ...launchOpts } = {}) => {
 
   let browserProcessPromise = spawn()
 
-  const createBrowserContext = () =>
-    getBrowser().then(browser => browser.createIncognitoBrowserContext())
+  const createBrowserContext = contextOpts =>
+    getBrowser().then(browser => browser.createIncognitoBrowserContext(contextOpts))
 
   const getBrowser = async () => {
     if (isClosed) return browserProcessPromise
@@ -73,16 +73,16 @@ module.exports = ({ timeout: globalTimeout = 30000, ...launchOpts } = {}) => {
     return browserProcess || getBrowser()
   }
 
-  const createContext = async ({ retry = 2, timeout: contextTimeout } = {}) => {
-    let _contextPromise = createBrowserContext()
+  const createContext = async ({ retry = 2, timeout: contextTimeout, ...contextOpts } = {}) => {
+    let _contextPromise = createBrowserContext(contextOpts)
 
     const getBrowserContext = () => _contextPromise
 
     getBrowserContext().then(context => {
       const browserProcess = context.browser()
       browserProcess.once('disconnected', async () => {
         await getBrowser()
-        _contextPromise = createBrowserContext()
+        _contextPromise = createBrowserContext(contextOpts)
       })
     })
 
@@ -132,7 +132,9 @@ module.exports = ({ timeout: globalTimeout = 30000, ...launchOpts } = {}) => {
             debug('onFailedAttempt', { name: error.name, code: error.code, isRejected })
             if (error.name === 'AbortError') throw error
             if (isRejected) throw new AbortError()
-            if (error.code === 'EBRWSRCONTEXTCONNRESET') _contextPromise = createBrowserContext()
+            if (error.code === 'EBRWSRCONTEXTCONNRESET') {
+              _contextPromise = createBrowserContext(contextOpts)
+            }
             const { message, attemptNumber, retriesLeft } = error
             debug('retry', { attemptNumber, retriesLeft, message })
           }

packages/browserless/test/index.js

@@ -1,14 +1,51 @@
 'use strict'
 
+const { initBrowserless, getBrowserless } = require('@browserless/test/util')
+const http = require('http')
+
 const test = require('ava')
-const createBrowserless = require('../src')
 
-require('@browserless/test')(createBrowserless())
+const browserlessFactory = getBrowserless()
+
+require('@browserless/test')(browserlessFactory)
+
+test('pass specific options to a context', async t => {
+  const proxiedRequestUrls = []
+
+  const proxy = http
+    .createServer((req, res) => {
+      proxiedRequestUrls.push(req.url)
+
+      const proxyRequest = http.request(
+        req.url,
+        {
+          method: req.method,
+          headers: req.headers
+        },
+        proxyResponse => {
+          res.writeHead(proxyResponse.statusCode, proxyResponse.headers)
+          proxyResponse.pipe(res, { end: true })
+        }
+      )
+
+      req.pipe(proxyRequest, { end: true })
+    })
+    .listen()
+
+  const proxyServer = `http://[::]:${proxy.address().port}`
+
+  const browserless = await browserlessFactory.createContext({ proxyServer: proxyServer })
+  const page = await browserless.page()
+
+  await browserless.goto(page, { url: 'http://example.com' })
+
+  t.deepEqual(proxiedRequestUrls, ['http://example.com/'])
+})
 
 test('ensure to destroy browser contexts', async t => {
-  const browserlessFactory = createBrowserless()
+  const browserlessFactory = initBrowserless()
+
   const browser = await browserlessFactory.browser()
-  t.teardown(() => browser.close())
 
   t.is(browser.browserContexts().length, 1)