You can’t do this: {this.state.arrayFromJson} As your error suggests what you are trying to do is not valid. You are trying to render the whole array as a React child. This is not valid. You should iterate through the array and render each element. I use .map to do that. I am pasting a link … Read more
Use superagent.agent() (instead of plain old superagent) to make requests have persistent cookies. See ‘Saving cookies’ in the superagent docs, or the code examples: agency.js, controller.test.js.
Tried to put this in a comment above, formatting wasn’t working out. I’m using async, which is really standard and works really well. it(‘should respond to only certain methods’, function(done) { async.series([ function(cb) { request(app).get(“https://stackoverflow.com/”).expect(404, cb); }, function(cb) { request(app).get(‘/new’).expect(200, cb); }, function(cb) { request(app).post(“https://stackoverflow.com/”).send({prop1: ‘new’}).expect(404, cb); }, function(cb) { request(app).get(‘/0’).expect(200, cb); }, function(cb) { … Read more
Frequently I too get this error, to solve this error 1. Open Dev tools 2. Go to Application section 3. Clear the local storage by right clicking it. Hope your error is resolved
Another way to work around it is to directly add the required CORS headers to the dev server: devServer: { … headers: { “Access-Control-Allow-Origin”: “*”, “Access-Control-Allow-Methods”: “GET, POST, PUT, DELETE, PATCH, OPTIONS”, “Access-Control-Allow-Headers”: “X-Requested-With, content-type, Authorization” } } Doc links Webpack dev server Access-Control-Allow-Headers Access-Control-Allow-Methods Access-Control-Allow-Origin