The reason I need this is to access sites which redirect to a consent subdomain for cookie notices when using a European IP address. Yahoo is an example of a site which does this; I've seen others in the past.
Dismissing cookie notices would also be useful outside of my niche use-case.

A couple of solutions come to mind:

1. Configure uBlock Origin using Chromium's managed storage
Placing a file like below at /etc/chromium/policies/managed/ could work, but I'm not sure if Browserless would respect it?

{  "toAdd": {   "Value" : {  "selectedFilterLists": [  "fanboy-cookiemonster",  "ublock-cookies-easylist", "adguard-cookies", "ublock-cookies-adguard"  ]  }  }  }

2. Add Consent-O-Matic as an extension
I tried doing this and loading it with args: ["--load-extension=/usr/src/app/extensions/Consent-O-Matic"], but I think that the argument was ignored, or made redundant due to --load-extensions-except=... also being passed to Chromium.

3. Manually implement using network interception.
Probably a sound solution but I would rather use the provided uBlock Origin lists or another extension if possible.

Has anyone got any examples of doing something like this already, or any other ideas to achieve this?