Uncaught Error: A cross-origin error was thrown. React doesn't have access to the actual error object in development

Question

Everytime I submit a zone, It display this error \'Uncaught Error: A cross-origin error was thrown. React doesn\'t have access to the actual error object in development\' It

Answer 1

Clearing token in local storage helped me.

Answer 2

You may be are getting this error for this line:

console.log('SubmitZone: ' + JSON.stringify(this.state.zone))

You are trying to cast this.state.zone into a string typed value when may be, it is null, empty or it's not well formatted