Being able to exclude chrome-extension:// domains with chrome.declarativeNetRequest

[Justin Phu]

Hey,

I've been using Chrome Declarative Net Request in MV3 (https://developer.chrome.com/docs/extensions/reference/declarativeNetRequest/).

I want to be able to block all fetch requests to a certain domain except if it's being called from within the extension background service worker.

However, it seems like `excludedInitiatorDomains" does not seem to support chrome-extension://* url path. Am I just missing something here?

My ruleset looks as follows:

```
[
  {
    "id": 1,
    "priority": 1,
    "action": {
      "type": "block"
    },
    "condition": {
      "urlFilter": "||myendpoint.com",
      "excludedInitiatorDomains": [
        "chrome-extension://aeblfdkhhhdcdjpifhhbdiojplfjncoa"
      ],
      "resourceTypes": ["xmlhttprequest"]
    }
  }
]
```

Is it possible to prevent fetch calls to a certain domain but allowlisting the background extension service worker?

Kind regards,
Justin Phu

[Jackie Han]

"excludedInitiatorDomains" is a list of domains. The extension id is the domain part of an extension.

So you can try: "excludedInitiatorDomains": [ "aeblfdkhhhdcdjpifhhbdiojplfjncoa" ],

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[Justin Phu]

That worked perfectly!

Thanks for the quick response and help @Jackie Han 😀

Kind regards,

Justin Phu

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