I am making an extension for one website and on specific pages there is a button that executes logic that I need to trigger from extension. Lets say page has button <button onclick="page_action('1')">Click me</button>. page_action function is located in separate file that is hosted in CDN, for example https://website.cdn.com/my_script.js and this my_script.js is defined on websites page (head tag).

So my question is how and if its even possible to manually execute page_action from within chrome extension ?

Finding and clicking button element isn't an option cause in some cases this button is hidden.

Tried different variations and one error that I stumbled was related to CSP. This code is even throwing error:

"content_security_policy": {
    "extension_pages": "script-src 'self' https://website.cdn.com; object-src 'self'"
  }