diff --git a/README.md b/README.md
index a5612f759ed32435e76b07beb71d8e53d52282dc..c97ebb4b0157fb1f0f186ea41472098ffc8410b4 100644
--- a/README.md
+++ b/README.md
@@ -27,6 +27,10 @@ Wechaty is a Bot Framework for Wechat **Personal** Account which can help you cr
 
 > @naishstar: thanks for great SDK [link](https://github.com/wechaty/wechaty/issues/57)
 
+> @shevyan: 简单的接口...和Docker化的封装，结合Docker绝对是一个不错的选择 [link](http://mp.weixin.qq.com/s/o-4VMcAMz0K8yJVdNaUXow)
+
+> @lijiarui: [Chat实录｜李佳芮：向前一步的程序媛](http://mp.weixin.qq.com/s/dWHAj8XtiKG-1fIS5Og79g)
+
 # Example
 
 The shortest wechat bot code in the world: 6 lines JavaScript
@@ -196,11 +200,11 @@ You can directly submit pull requests for documentation changes.
 
 ## Join us 
 
-Scanning the following QR Code in WeChat, with secret code 'wechaty', you can join our **Wechaty Developers' Home**.
+Scan the following QR Code in WeChat, with secret code _wechaty_, you can join our **Wechaty Developers' Home**.
 
 ![Wechaty Developers' Home](https://raw.githubusercontent.com/wechaty/wechaty/master/image/BotQrcode.png)
 
-Scan now, then chat with other Wechaty developers!
+Scan now, then you can chat with other Wechaty developers!
 
 # See Also
 
diff --git a/example/ding-dong-bot.ts b/example/ding-dong-bot.ts
index dbde7cefd03a1d46d439a686ed41334fb33a38f0..0398985a583507625eb415d9f8c0ea952dee94b6 100644
--- a/example/ding-dong-bot.ts
+++ b/example/ding-dong-bot.ts
@@ -8,7 +8,8 @@
  */
 
 /* tslint:disable:variable-name */
-const QrcodeTerminal = require('qrcode-terminal')
+const QrcodeTerminal  = require('qrcode-terminal')
+const nodeCleanup     = require('node-cleanup')
 
 import {
   Wechaty
@@ -71,17 +72,15 @@ bot
 })
 
 bot.init()
+.then(() => {
+  bot.say('Wechaty init')
+})
 .catch(e => {
   log.error('Bot', 'init() fail: %s', e)
   bot.quit()
   process.exit(-1)
 })
 
-function logToFile(data) {
-  require('fs').appendFile('message.log', data + '\n\n#############################\n\n', err => {
-    if (err) { log.error('LogToFile: %s', err) }
-  })
-}
-if (typeof logToFile === 'fasdfsd') {
-  console.log('disable linting warning')
-}
+nodeCleanup(() => {
+  bot.say('Wechaty exit')
+})
diff --git a/example/speech-to-text-bot.ts b/example/speech-to-text-bot.ts
index df765e634d8270069d04d86fd83271504b02439f..1f3d6c6ad5550f5c5245af20d54e594627930c6a 100644
--- a/example/speech-to-text-bot.ts
+++ b/example/speech-to-text-bot.ts
@@ -35,26 +35,25 @@ bot
   console.log(`${url}\n[${code}] Scan QR Code in above url to login: `)
 })
 .on('login'	  , user => console.log(`${user} logined`))
-.on('message', async function(this, m) {
-  console.log(`RECV: ${m}`)
+.on('message', async function(this, msg) {
+  console.log(`RECV: ${msg}`)
 
-  if (m.type() !== MsgType.VOICE) {
+  if (msg.type() !== MsgType.VOICE) {
     return // skip no-VOICE message
   }
 
-  const mp3File = createWriteStream(m.filename())
+  const mp3Stream = await (msg as MediaMessage).readyStream()
 
-  const mp3Stream = await (m as MediaMessage).readyStream()
-
-  mp3Stream.pipe(mp3File)
+  const file = createWriteStream(msg.filename())
+  mp3Stream.pipe(file)
 
   const text = await speechToText(mp3Stream)
   console.log('VOICE TO TEXT: ' + text)
 
-  if (m.self()) {
+  if (msg.self()) {
     this.say(text)  // send text to 'filehelper'
   } else {
-    m.say(text)     // to original sender
+    msg.say(text)     // to original sender
   }
 
 })
diff --git a/package.json b/package.json
index 617df555fa31e91ab2862c64842acee56985281b..df911594bcbc9b1df593547f5a591ad8a9ddf867 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "wechaty",
-  "version": "0.6.41",
+  "version": "0.6.42",
   "description": "Wechat for Bot(Personal Account)",
   "main": "dist/index.js",
   "types": "dist/index.d.ts",
@@ -35,7 +35,7 @@
     "test:chrome:fast": "cross-env LC_ALL=C WECHATY_HEAD=chrome ava --fail-fast --timeout=3m \"dist/{src,test}/**/*.spec.js\"",
     "testdev": "cross-env LC_ALL=C WECHATY_LOG=silly ava --ext ts --serial --verbose --fail-fast --timeout=2m",
     "testdist": "cross-env WECHATY_LOG=SILLY WECHATY_HEAD=chrome ava --ext ts --verbose --fail-fast --timeout=2m",
-    "ava": "cross-env LC_ALL=C WECHATY_LOG=verbose node_modules/.bin/ava",
+    "ava": "ava --extension ts",
     "io-client": "ts-node bin/io-client",
     "dev": "ts-node dev.ts",
     "demo": "ts-node example/ding-dong-bot.ts",
@@ -125,6 +125,7 @@
     "eslint": "^3.4.0",
     "eslint-plugin-ava": "^3.1.1",
     "fluent-ffmpeg": "^2.1.0",
+    "node-cleanup": "^1.0.1",
     "nyc": "^8.3.2",
     "qrcode-terminal": "^0.10.0",
     "request": "^2.79.0",
diff --git a/src/contact.ts b/src/contact.ts
index d9e26969f1f1a51b708dc16c680b9c97d9758c95..a715c492f64ebb14892e987baa8536285570d16e 100644
--- a/src/contact.ts
+++ b/src/contact.ts
@@ -186,7 +186,7 @@ export class Contact implements Sayable {
     }
     log.verbose('Cotnact', 'findAll({ name: %s })', query.name)
 
-    const nameFilter = query.name
+    let nameFilter = query.name
 
     if (!nameFilter) {
       throw new Error('nameFilter not found')
@@ -201,6 +201,7 @@ export class Contact implements Sayable {
     if (nameFilter instanceof RegExp) {
       filterFunction = `(function (c) { return ${nameFilter.toString()}.test(c) })`
     } else if (typeof nameFilter === 'string') {
+      nameFilter = nameFilter.replace(/'/g, '\\\'')
       filterFunction = `(function (c) { return c === '${nameFilter}' })`
     } else {
       throw new Error('unsupport name type')
diff --git a/src/puppet-web/browser-driver.ts b/src/puppet-web/browser-driver.ts
index f5ba3ef3e819c45b6b926d37d40d46d50cbe2f5b..e32f26b78b25561d6423ba96e011c6fe0e284f26 100644
--- a/src/puppet-web/browser-driver.ts
+++ b/src/puppet-web/browser-driver.ts
@@ -141,6 +141,11 @@ export class BrowserDriver {
         }
 
       } catch (e) {
+        if (/could not be found/.test(e.message)) {
+          // The ChromeDriver could not be found on the current PATH
+          log.error('PuppetWebBrowserDriver', 'initChromeDriver() Wechaty require `chrome-driver` to be installed.')
+          throw e
+        }
         log.warn('PuppetWebBrowserDriver', 'initChromeDriver() exception: %s, retry: %d', e.message, retry)
         driverError = e
       }
diff --git a/src/puppet-web/wechaty-bro.js b/src/puppet-web/wechaty-bro.js
index b1100d4f86437653f19a34ea81be1af93d473c2a..c08e369cad6ee8e74d10ce125fc89d4c5c798a45 100644
--- a/src/puppet-web/wechaty-bro.js
+++ b/src/puppet-web/wechaty-bro.js
@@ -720,7 +720,7 @@
     })
   }
 
-  function verifyUserOk(UserName, Ticket) {
+  function verifyUserOkAsync(UserName, Ticket) {
     var callback = arguments[arguments.length - 1]
     if (typeof callback !== 'function') {
       // here we should in sync mode, because there's no callback
@@ -827,8 +827,8 @@
     , roomModTopic:    roomModTopic
 
     // for Friend Request
-    , verifyUserRequest: verifyUserRequest
-    , verifyUserOk:      verifyUserOk
+    , verifyUserRequestAsync: verifyUserRequestAsync
+    , verifyUserOkAsync:      verifyUserOkAsync
     // , friendAdd
     // , friendVerify
 
diff --git a/src/room.ts b/src/room.ts
index 2031459cd91f08a29108aca2fada0c8909e781ea..1eb017b5a445e3f80f32dee94a42af0ca22330cb 100644
--- a/src/room.ts
+++ b/src/room.ts
@@ -415,7 +415,7 @@ export class Room extends EventEmitter implements Sayable {
     }
     log.verbose('Room', 'findAll({ topic: %s })', query.topic)
 
-    const topicFilter = query.topic
+    let topicFilter = query.topic
 
     if (!topicFilter) {
       throw new Error('topicFilter not found')
@@ -426,6 +426,7 @@ export class Room extends EventEmitter implements Sayable {
     if (topicFilter instanceof RegExp) {
       filterFunction = `(function (c) { return ${topicFilter.toString()}.test(c) })`
     } else if (typeof topicFilter === 'string') {
+      topicFilter = topicFilter.replace(/'/g, '\\\'')
       filterFunction = `(function (c) { return c === '${topicFilter}' })`
     } else {
       throw new Error('unsupport topic type')
diff --git a/test/puppet-web/event.spec.ts b/test/puppet-web/event.spec.ts
index 0c9486daff87acae2795b0947f76e79eefb88b33..a9ad5eff2bb46893de088cea784a18e3441d4336 100644
--- a/test/puppet-web/event.spec.ts
+++ b/test/puppet-web/event.spec.ts
@@ -31,6 +31,5 @@ test('Puppet Web Event smoking test', async t => {
     await pw.quit()
   } catch (e) {
     t.fail('exception: ' + e.message)
-    throw e
   }
 })