Hi team slightly smiling face We noticed some behavior in re GrowthBook Users #ask-questions

Hi, team! :slightly_smiling_face: We noticed some...

busy-window-96391

09/15/2025, 10:26 AM

Hi, team! 🙂 We noticed some behavior in remote evaluation that is not obvious to us. Features with defaultValue: false or defaultValue: 0 are not returned in the results. Code references: • In the SDK (core.ts):

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on: !!value,
off: !value,

• In the Proxy (index.ts):

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if (result.on || result.experiment) {
  evaluatedFeatures[key] = { defaultValue: result.value };
}

What happens: • defaultValue: false → not returned • defaultValue: 0 → not returned • defaultValue: true → returned • defaultValue: "false" → returned Because of this, we can’t tell if a feature is really disabled or if it just has a value of false or 0. Is this the expected behavior? If so, could you explain the reasoning behind it? For us this creates issues when using boolean or numeric feature flags with remote evaluation.

calm-dog-24239

09/15/2025, 11:54 AM

Hi @busy-window-96391. Please let us check that and we will write to you.

❤️ 1

calm-dog-24239

09/15/2025, 1:45 PM

We have checked, and it is also not returning when the value is 0 or false on our side. It looks like the problem is in the proxy.

👀 1

calm-dog-24239

09/16/2025, 6:41 AM

Hi @busy-window-96391. Thank you for finding that. We have reproduced the issue and are now implementing a solution. We will provide a pull request for it as soon as possible. The changes need to be made on the SDK side.

❤️ 1

calm-dog-24239

09/16/2025, 9:42 AM

Hi again. Here is a pull request on proxy. Previously, we thought it could be changed on the SDK side, but after checking, we realized that many changes would be required in the SDK and the tests started failing. So, we assume that the best approach for now is to make the change on the proxy side.

🙌 1

calm-dog-24239

09/16/2025, 10:21 AM

Could you kindly take a look at that when you have a moment on this pull request? CC: @freezing-postman-69602 @happy-autumn-40938

happy-autumn-40938

09/16/2025, 8:24 PM

Thanks @calm-dog-24239! A few related bugs needed to be addressed at the same time, so I've opened a comprehensive fix here: https://github.com/growthbook/growthbook-proxy/pull/96

🙌 1

happy-autumn-40938

09/16/2025, 11:19 PM

Hi @busy-window-96391, the issue should be patched on the latest remoteEval and proxy releases.

👏 1

calm-dog-24239

09/17/2025, 5:58 AM

Hi @happy-autumn-40938. Thank you very much.

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