CODEWITHSUNDEEP
javascriptgoogle-chromegoogle-chrome-extension
areviews app
areviews app

Reputation: 23

Detect if a Chrome extension is installed by users

I tried all solutions in this question

Check whether user has a Chrome extension installed

what I did:

1- I added background js file and in manifest I added the following 

 "background": {
       "scripts": ["js/background.js"],
       "persistent": true
   },

   "permissions": [ "https://*.mydomain.com/*" ],

in background.js I added 

chrome.runtime.onMessageExternal.addListener(function(msg, sender, sendResponse) {
    if ((msg.action == "id") && (msg.value == id))
    {
        sendResponse({id : id});
    }
});

and in my website I added this code

<script>
    var id = "madbfblbpcoiddlankhkdbagjeemnlof";
    chrome.runtime.sendMessage(id, {action: "id", value : id}, function(response) {
        if(response && (response.id == id)) //extension installed
        {
            console.log(response);
        }
        else //extension not installed
        {
            console.log("Please consider installig extension");
        }

    });
</script>

and I always get Please consider installig extension

How can I fix this issue ??

Upvotes: 1

Views: 1807

Answers (1)

Luka Čelebić
Luka Čelebić

Reputation: 1093

Define your id at the start of your background.js like so: var id = chrome.runtime.id;.

Also you need to add your site to the externally_connectable instead of the permissions in the manifest.json as:

"externally_connectable": {
    "matches": ["https://*.mydomain.com/*"]
}

Upvotes: 3

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