Open local html file from filesystem on android

[shiro]

I've been looking at the official updater plugin and since it doesn't seem to support android, I thought about trying to add that.

I used a similar approach in my capacitor app, but from what I understand that one used a local web-server and tauri uses a custom protocol on android.

I created a test file using my plugin, located in /data/user/0/com.foo.bar/files/hello.html, however I'm unable to make it work.

My kotlin code:

webView.loadUrl(assetUrl(Uri.fromFile(htmlFile)))

and my app.security section in tauri.conf.json:

    "security": {
      "csp": "default-src 'self' asset: http://asset.localhost",
      "assetProtocol": {
        "enable": true,
        "scope": [
          "**"
        ]
      }
    }

I'm unfamiliar with csp strings, am I doing something wrong?