Chrome extension not loading EventListener

Question

I\'ve been creating a chrome extension that splits my new tab pages into 2 frames so I can try to load 2 different URLs. Right now I\'ve started off simple, but I can\'t get the

Answer 1

Move this script from Bakcground.html to Left@Right.html

<script type="text/javascript" src="script.js"></script> 

And then in the script.js remove the "." before click

document.getElementById("loader").addEventListener.("click", loadUrl);

the above line should be

document.getElementById("loader").addEventListener("click", loadUrl);

Answer 2

In your manifest.json file, you should add a key, that indicates whenever to run your .js scripts.

You should place it under "content_scripts" as following:

{
...
    "content_scripts": [{
        "run_at": "document_end",
...

"document_end" indicates that your code should run after the document, of the current tab, was loaded.