Hi everyone, I'm using feature flags and targeting the evaluation with a

"Saved Group"

and integrated my

ExpressJS

application with

Growthbook Node.js SDK

. My express middleware for GB:

- initialise GB instance
    req.gb = new GrowthBook(...);
- req.gb.setAtrributes(...)
- req.gb.loadFeatures({ timeout })
      .then(() => next())
      .catch((e) => {
        logger.error('Failed to load features from GrowthBook', e);
        next();
   });

My deployment is:

Express app => Growthbook-proxy(with REDIS enabled) => Growthbook Cloud

The feature flag rule is:

{"id": {"$inGroup": "<grp_identifier>"}} 

Value to Force = on

In the saved group, I have specified a list of string ids on which the GrowthBook SDK helps in deciding which corresponding business logic variant to execute for that particular http request. As in:

if request.growthBook.isOn()
   then: doThis()
else: doThat()

The problem I'm facing is despite some of the IDs not being in the saved group, GrowthBook's

.isOn

evaluates the feature flag to

true

If it is evaluated to

false

instead of

true

for an id existing in the saved group, I have a proven justification that growthbook loadFeature function failed to fetch it or the request timed out so it falls back to

false/null

. But I'm not able to further debug and find out what's going wrong with the

truthy

evaluation. I'd appreciate your response and assistance in resolving this issue.

What is the default value for your feature flag?

Have a look at this ...