const isSubscriptionStreamingEnabled =
  !!configData?.experimental_features.includes('streaming_subscriptions');
Optional chaining (?.) only guards configData, not experimental_features. When configData exists but experimental_features is null (the default when HASURA_GRAPHQL_EXPERIMENTAL_FEATURES is not set), .includes() is called on null.

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### How to reproduce the issue?

Run Hasura v2.48.16 without setting HASURA_GRAPHQL_EXPERIMENTAL_FEATURES
Open the Console
Navigate to any table's permissions tab
Click to edit any permission
Console crashes


### Screenshots or Screencast

<img width="1050" height="714" alt="Image" src="https://github.com/user-attachments/assets/55387c39-0675-4152-b1a7-0c655be6639e" />

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### Please provide any traces or logs that could help here.

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### Any possible solutions/workarounds you're aware of?

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### Keywords

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