Unserializable keys in actions are simply thrown away

[aeneasr]

Suppose

store.dispatch({
  type: 'FOO',
  payload: new Error('ASDF')
})

With an appropriate reducer, something like (pseudocode):

const reducer = (state, action) => action.payload

Now we select the state somewhere and want to yield the error. This works as long the remote devtools middleware is disabled. As soon as it's enabled, action.payload is an empty object {} (the result you get when running JSON.parse(new Error('foo')). For now I switched to devtools-extensions to fix this.

[dorian-marchal]

redux-devtools-extension accepts a serialize option parameter to avoid that.

This is useful when the payload is an error (this can be the case with Flux Standard Actions).

Currently, errors actions are not very useful is devtools:

With redux-devtools-extension, this is a bit better (but not ideal as the stack trace is missing):