Can we maskError in onValidate Plugin hook?

[aryascripts]

Current Behaviour

Hello, we are wondering if this is expected behaviour about error masking that is described here: https://the-guild.dev/graphql/yoga-server/docs/features/error-masking#customize-error-masking

Currently, for the plugin lifecycle, the behaviour is that these hooks do not go through maskError logic that is for the end-response to the client.

• onRequestParse
• onParams
• onParse
• onValidate

Desired Behaviour

We want to throw (or setResult) from onValidate hook with as much detail as possible for our metrics and logging, but also be able to mask these errors from real clients.

There's a failing test implemented here for what we would ideally like (see test 1 in PR)

What we tried

We have tried implementing our own maskError logic inside of onValidate (sample code and test below), but that has the side effect of already-masked errors returned from the validation cache. See test 2 in PR.

These examples are described in these tests in the PR: #3899

• Is there a different way to implement this behaviour in GraphQL Yoga?
• Should onValidate go through maskError logic?