Question

I want to use AngularJS in a Chrome extension but I have an error like this:

Error: SECURITY_ERR: DOM Exception 18
Error: An attempt was made to break through the security policy of the user agent.
    at new listConnection

manifest.json :

 {
  "name": "Chrome auditor connection",
  "version": "1",
  "icons": { "48": "icone.png",
            "128": "icone.png" },
  "description": "Chrome-auditor-connection is an extension for Google Chrome browser. It ensures that nobody connects to your browser with your profile.",
  "background": {
    "scripts": [
      "chrome_ex_oauthsimple.js",
      "chrome_ex_oauth.js",
      "background.js"
    ]
  },
  "browser_action": {
    "default_title": "Chrome auditor connection",
    "default_icon": "icone.png",
    "default_popup": "index.html"
  },
  "permissions": [
    "storage"
  ],
  "web_accessible_resources": ["index.html"],
  "sandbox": {
     "pages": ["index.html","index.js","angular.min.js"]
  },
  "manifest_version": 2
}

index.js :

function listConnection( $scope) {      
    $scope.connections = JSON.parse(localStorage['connectionHistory']);
}

I think the JSON.parse() is blocked by the Chrome “Content Security Policy” (CSP).

Do you have any solution?

Answer 1

Your index.js is sandboxed as defined in your manifest.json file.
“A sandboxed page will not have access to extension or app APIs”
So it can’t access localstorage.
Remove the sandbox or use something like https://github.com/jamesmortensen/chrome-sandbox-storageAPI for sandboxed pages.