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The issue you are encountering is rooted in how Chrome Extensions handle the Content Security Policy. Google currently limits the resources that can be loaded by a Chrome extension to improve security. This poses a challenge though as direct access to the analytics script is blocked. This is done to protect extension users from inadvertently executing harmful scripts. One possible workaround to bypass the limitation does not involve directly calling the script. You can make use of the Measurement Protocol by Google Analytics to send HTTP requests. Here, you would instantiate an XMLHttpRequest (or fetch) in your JavaScript file and use it to send pageview or event data to Google Analytics. While it’s a more roundabout way as it requires forming and sending HTTP request instead of simply embedding the script tag, it gets around the CSP restrictions in the manifest.json file.
