Parse Cloud `beforeConnect` and `beforeSubscribe` errors should throw in `ParseQuery.subscribe`

[dblythy]

New Feature / Enhancement Checklist

• I am not disclosing a vulnerability.
• I am not just asking a question.
• I have searched through existing issues.

Current Limitation

To listen to a Parse Cloud beforeSubscribe error, you have to create an error.on listener. The error for beforeConnect and beforeSubscribe should trigger on query.subscribe

https://github.com/parse-community/parse-server/blob/443a5099059538d379fe491793a5871fcbb4f377/spec/ParseLiveQuery.spec.js#L594

Feature / Enhancement Description

Throw on await query.subscribe()

Example Use Case

Alternatives / Workarounds

Leave as is

3rd Party References

[parse-github-assistant]

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[mtrezza]

Is this a feature or a fix? And would changing this be a breaking change?

[dblythy]

I guess it’s a feature (although it’s expected behaviour) and breaking because any query.subscribe that throws using beforeConnect/beforeSubscribe will throw