From 29c5bb651320f20bc17fea0bdfa4f1d130e83512 Mon Sep 17 00:00:00 2001
From: Ryan Lindskog <rlindskog@users.noreply.github.com>
Date: Mon, 10 Dec 2018 13:35:04 -0800
Subject: [PATCH] refactor: remove caniuse-lite dependency (#4419)

---
 packages/common/data/modern-browsers.json | 15 ++++++++-------
 packages/server/package.json              |  5 +++--
 packages/server/src/middleware/modern.js  | 18 ++++++++++++------
 3 files changed, 23 insertions(+), 15 deletions(-)

diff --git a/packages/common/data/modern-browsers.json b/packages/common/data/modern-browsers.json
index e1d2997e51..d8964e1b3b 100644
--- a/packages/common/data/modern-browsers.json
+++ b/packages/common/data/modern-browsers.json
@@ -1,9 +1,10 @@
 {
-  "edge": "16",
-  "firefox": "60",
-  "chrome": "61",
-  "safari": "10.1",
-  "opera": "48",
-  "ios_saf": "10.3",
-  "and_ff": "60"
+  "Edge": "16",
+  "Firefox": "60",
+  "Chrome": "61",
+  "Chrome Headless": "61",
+  "Chromium": "61",
+  "Safari": "10.1",
+  "Opera": "48",
+  "Mobile Safari": "10.3"
 }
diff --git a/packages/server/package.json b/packages/server/package.json
index 26cb0931a6..7cb1d6da45 100644
--- a/packages/server/package.json
+++ b/packages/server/package.json
@@ -11,7 +11,6 @@
     "@nuxt/common": "2.3.4",
     "@nuxt/config": "2.3.4",
     "@nuxtjs/youch": "^4.2.3",
-    "browserslist-useragent": "^2.0.1",
     "chalk": "^2.4.1",
     "compression": "^1.7.3",
     "connect": "^3.6.6",
@@ -22,9 +21,11 @@
     "ip": "^1.1.5",
     "launch-editor-middleware": "^2.2.1",
     "pify": "^4.0.1",
+    "semver": "^5.6.0",
     "serve-placeholder": "^1.1.0",
     "serve-static": "^1.13.2",
-    "server-destroy": "^1.0.1"
+    "server-destroy": "^1.0.1",
+    "ua-parser-js": "^0.7.19"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/server/src/middleware/modern.js b/packages/server/src/middleware/modern.js
index a0f3616cb6..a571a983ec 100644
--- a/packages/server/src/middleware/modern.js
+++ b/packages/server/src/middleware/modern.js
@@ -1,16 +1,22 @@
 import chalk from 'chalk'
 import consola from 'consola'
 import { ModernBrowsers } from '@nuxt/common'
-import { matchesUA } from 'browserslist-useragent'
+import UAParser from 'ua-parser-js'
+import semver from 'semver'
 
 const modernBrowsers = Object.keys(ModernBrowsers)
-  .map(browser => `${browser} >= ${ModernBrowsers[browser]}`)
+  .reduce((allBrowsers, browser) => {
+    allBrowsers[browser] = semver.coerce(ModernBrowsers[browser])
+    return allBrowsers
+  }, {})
 
 const isModernBrowser = (ua) => {
-  return Boolean(ua) && matchesUA(ua, {
-    allowHigherVersions: true,
-    browsers: modernBrowsers
-  })
+  if (!ua) {
+    return false
+  }
+  const { browser } = UAParser(ua)
+  const browserVersion = semver.coerce(browser.version)
+  return modernBrowsers[browser.name] && semver.gte(browserVersion, modernBrowsers[browser.name])
 }
 
 let detected = false