CODEWITHSUNDEEP
javascriptgoogle-chromegoogle-chrome-extensionwebrequest
ByteFlowr
ByteFlowr

Reputation: 500

Cannot read property 'onBeforeRequest' of undefined

I looked at other questions with the same problem, but I couldn't found a solution. My manifest.json:

{
   "background": {
      "scripts": [ "js/background.js" ],
   },
   "description": "...",
   "icons": {
      "128": "icons/128.png",
      "16": "icons/16.png",
      "48": "icons/48.png"
   },
   "manifest_version": 2,
   "name": "Name it!",
   "offline_enabled": false,
   "permissions": [ "webRequest", "webRequestBlocking", "https://www.youtube.com/*" ],
   "permissions": [ "https://www.youtube.com/*" ],
   "version": "1.0"

}

and my background.js:

chrome.webRequest.onBeforeRequest.addListener(
    function(details) {
        var idid = details.url;
        var vid = idid.split("watch?v=");
        var akk = vid[1];
        if (akk.includes("&") && akk.includes("=")) {
            akk = akk.split("&")[0];
        }
        var xhr = new XMLHttpRequest();
        xhr.open("GET", "https://www.youtube.com/feeds/videos.xml?channel_id=xxx", false);
        xhr.send();
        var result = xhr.responseText;
        if(result.includes(akk)) {
            redirectUrl : "chrome-extension://"+window.location.hostname+"/html/block.html"
        }
    },
{urls: ["https://www.youtube.com/*"]},
["blocking"]);

I getting this Error:

Uncaught TypeError: Cannot read property 'onBeforeRequest' of undefined

What could be the problem?

Upvotes: 3

Views: 4426

Answers (1)

Alon Levanon
Alon Levanon

Reputation: 701

Your manifest.json may be the reason.

It has duplicate entries for "permissions". Try to remove the second one.

 "permissions": [ "webRequest", "webRequestBlocking", "https://www.youtube.com/*" ],
 "permissions": [ "https://www.youtube.com/*" ], // remove this one

Upvotes: 1

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