added user-agent logic

bluepill/manifest.json

@@ -13,8 +13,8 @@
      "scripts": ["background.js"],
      "persistent": false
    },
-  "permissions": ["storage"],
-  "browser_action": {
+  "permissions": ["storage", "webRequest", "webRequestBlocking", "*://*/*"],
+      "browser_action": {
       "name": "Click to change your browsers perspective",
       "default_icon": "icon0.png"
   },