Bookmarklet not working

I am running Shaarli locally (macos) via the official docker image, instead of setting it up manually as I've done in the past.

It seems to work, but the bookmarklet does not work. Everytime I try it gives:

```console
This site can’t be reached
admin’s DNS address could not be found. Diagnosing the problem.
DNS_PROBE_STARTED
```

Any idea what is going on?