[Fleet] Package policy is invalid: required field, value empty string

[mtojek]

Hi,

we suspect that something might have changed in Kibana. We have a system test, that uses a required field content_type and sets its value to an empty string (""). We noticed that the system test fails with:

[36mkibana_1                     |[0m [2022-01-24T04:55:38.557+00:00][ERROR][plugins.fleet] Package policy is invalid: inputs.http_endpoint.streams.ti_anomali.threatstream.vars.content_type: Webhook path is required

We also noticed that the last time the system test worked was 4 days ago. It means that there is a risk that a breaking change might have been introduced.

Would you mind taking a look?

[joshdover]

Guessing this is related to #123261 which was just recently merged.

[joshdover]

We need to accept empty strings as values for required fields to fix this, our lovely JavaScript programming language where empty strings are falsey is probably to blame here.

[mtojek]

Let's keep it open until we confirm it's fixed.

[mtojek]

I confirmed that the issue is fixed. Thanks for taking care of this folks!