Fix potential protocol mismatch and exploit for plugin message channel

[TheMeinerLP]

Proposed changes

This pr fixes a huge bug for interaction with minecaft client and some proxies solutions.

Types of changes

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• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation Update (if none of the other choices apply)

Checklist

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• I have read the CONTRIBUTING.md
• I have added tests that prove my fix is effective or that my feature works
• I have added necessary documentation (if appropriate)

Further comments

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did and what alternatives you considered, etc...

[sonarqubecloud]

Quality Gate failed

Failed conditions
33.3% Coverage on New Code (required ≥ 80%)
B Maintainability Rating on New Code (required ≥ A)
C Reliability Rating on New Code (required ≥ A)

See analysis details on SonarCloud

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[theEvilReaper]

LGTM!