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POInsert code into the page context using a content script
 

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    <p>I'm learning how to create Chrome extensions. I just started developing one to catch YouTube events. I want to use it with YouTube flash player (later I will try to make it compatible with HTML5).</p> <p><strong>manifest.json:</strong></p> <pre><code>{ "name": "MyExtension", "version": "1.0", "description": "Gotta catch Youtube events!", "permissions": ["tabs", "http://*/*"], "content_scripts" : [{ "matches" : [ "www.youtube.com/*"], "js" : ["myScript.js"] }] } </code></pre> <p><strong>myScript.js:</strong></p> <pre><code>function state() { console.log("State Changed!"); } var player = document.getElementById("movie_player"); player.addEventListener("onStateChange", "state"); console.log("Started!"); </code></pre> <p>The problem is that the console gives me the <em>"Started!"</em>, but there is no <em>"State Changed!"</em> when I play/pause YouTube videos.</p> <p>When this code is put in the console, it worked. What am I doing wrong?</p>
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    1. COtry to remove the quotes around your function name: `player.addEventListener("onStateChange", state);`
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