I'm just curious as to why is your API is expecting you to send the request something like this?
This data that you're sending should be either sent as a request payload to a POST request. Something like this:
let owners = ['Chris', 'John'];
this.http.post(`/pets/owners`, { owners }).subscribe(...);
Or you should send it as a GET request but then as query params in that case:
let owners = ['Chris', 'John'];
this.http.get(`/pets?owners=${owners.toString()}`).subscribe(...);
If you still are sending the data like this, how exactly is your server intercepting this request? Why I'm asking that is because you are not setting the owners
array as a value to anything.
If you still want to sent it like this, here's how you'd do that:
let owners = ['Chris', 'John'];
this.http.get(`/pets/owners=${JSON.stringify(owners)}`).subscribe(...);
But then again, I'm not really sure how your backend is making sense of this request.