fetch-api

I have been trying to create an android app using nativescript.I am using fetch module to get response from my server.When I am trying to get response from httpbin.org/get ,it is OK.But when I am trying to get response from my local server,I am getting Network Request Failed. error. Sending to httpbin.org/get- return fetchModule.fetch("https://httpbin.org/get").then(response => { return response.text(); }).then(function (r) { console.log(r); }, function (e) { console.log(e); }); Sending to localhost:8000/api- return fetchModule.fetch("http://localhost:8000/api").then(response => { return

I'm calling an API to download excel file from the server using the fetch API but it didn't force the browser to download, below is my header response: HTTP/1.1 200 OK Content-Length: 168667 Content-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet Server: Microsoft-IIS/8.5 Content-Disposition: attachment; filename=test.xlsx Access-Control-Allow-Origin: http://localhost:9000 Access-Control-Allow-Credentials: true Access-Control-Request-Method: POST,GET,PUT,DELETE,OPTIONS Access-Control-Allow-Headers: X-Requested-With,Accept,Content-Type,Origin Persistent-Auth: true X

So I've been building an app that uses the Fetch API to make a request. Unfortunately, I think the code shown in the Facebook docs are (may be?) incorrect. Problem When starting the app, Fetch makes a call to a URL to pull JSON data. componentDidMount(){ return fetch(REQUEST_URL) .then((response) => response.json()) .then((responseJson) => { this.setState({ isLoading: false, data: JSON.stringify(responseJson) }) }) .catch((error) => { console.error(error); }); } This is similar to the code that Facebook docs give as an example. The problem is that when I start the app, the data doesn't render

I want to intercept the fetch API request and response in Javascript. For ex: Before sending the request want to intercept the request URL and once get the response wants to intercept the response. The below code is for intercepting response of All XMLHTTPRequest. (function(open) { XMLHttpRequest.prototype.open = function(XMLHttpRequest) { var self = this; this.addEventListener("readystatechange", function() { if (this.responseText.length > 0 && this.readyState == 4 && this.responseURL.indexOf('www.google.com') >= 0) { Object.defineProperty(self, 'response', { get: function() { return bValue;

I am trying to get a page's HTML using fetch API. Here is my code. var quizUrl = 'http://www.lipsum.com/'; var myHeaders = new Headers(); myHeaders.append('Content-Type', 'text/html'); fetch(quizUrl,{ mode: 'no-cors', method: 'get', headers: myHeaders }).then(function(response) { response.text().then(function(text) { console.log(text); }) }).catch(function(err) { console.log(err) }); It returns empty string. Any guesses why it doesn't work? About the Request.mode 'no-cors' (from MDN, emphasis mine) Prevents the method from being anything other than HEAD, GET or POST. If any ServiceWorkers

I'm implementing CORS with credentials and a preflight request and I'm a bit mystified why the preflight request consistently fails in Firefox 30 but works in Safari (7.0.2) and Chrome 35. I think this issue is different from " Why does the preflight OPTIONS request of an authenticated CORS request work in Chrome but not Firefox? " because I am not getting a 401, but rather a CORS-specific message from the browser client: "Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at http://myurl.dev.com . This can be fixed by moving the resource to the same

I'm implementing CORS with credentials and a preflight request and I'm a bit mystified why the preflight request consistently fails in Firefox 30 but works in Safari (7.0.2) and Chrome 35. I think this issue is different from " Why does the preflight OPTIONS request of an authenticated CORS request work in Chrome but not Firefox? " because I am not getting a 401, but rather a CORS-specific message from the browser client: "Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at http://myurl.dev.com . This can be fixed by moving the resource to the same