reactotron: An object with `writable: false` prop in a state breaks SagaMonitor

We’ve recently added reactotron to our project and it’s pretty cool. We’ve noticed though that it raises an unhandled exception on read-only object’ props in sagas and actions attributes.

In this line https://github.com/infinitered/reactotron/blob/f49760fef66a24bd8ab26dd06c570176f0619c0f/packages/reactotron-core-client/src/scrub.js#L46

object[key] = getFunctionName(value);

an error is raised Cannot assign to read only property 'replace' of object. key === 'replace'.

I’ve noticed that it happens only when an object’s key is read-only.

Object.getOwnPropertyDescriptor(object, key)
// result:
{
  configurable: false,
  enumerable: true,
  value: '',
  writable: false
}

Why do we have a read-only value in an object is a good question and we definitely need to change that, but as a quicker solution we would love to have reactotron not break our app [:

I can add a fork where we run

object[key] = getFunctionName(value);

only when

Object.getOwnPropertyDescriptor(object, key).writable

is true. Will that solve the issue?