I am stuck with this CORS problem, even though I set the server (nginx/node.js) with the appropriate headers. I can see in Chrome Network pane -> Response Headers: Access-Control-Allow-Origin:http://localhost which should do the trick. Here’s the code that I now use to test: var xhr = new XMLHttpRequest(); xhr.onload = function() { console.log(‘xhr loaded’); }; … Read more
<script src=”http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.js” type=”text/javascript”></script> <script> $.get(“http://example.com/”, function(data) { alert(data); }); </script> it does an OPTIONS request to that URL, and then the callback is never called with anything. When it isn’t cross domain, it works fine. Shouldn’t jQuery just make the call with a <script> node and then do the callback when its loaded? I understand … Read more
I’m using JSON.parse on a response that sometimes contains a 404 response. In the cases where it returns 404, is there a way to catch an exception and then execute some other code? data = JSON.parse(response, function (key, value) { var type; if (value && typeof value === ‘object’) { type = value.type; if (typeof … Read more
I’m making an Ajax.request to a remote PHP server in a Sencha Touch 2 application (wrapped in PhoneGap). The response from the server is the following: XMLHttpRequest cannot load http://nqatalog.negroesquisso.pt/login.php. Origin http://localhost:8888 is not allowed by Access-Control-Allow-Origin. How can I fix this problem? 18 Answers 18
In Firefox 3, the answer is 6 per domain: as soon as a 7th XmlHttpRequest (on any tab) to the same domain is fired, it is queued until one of the other 6 finish. What are the numbers for the other major browsers? Also, are there ways around these limits without having my users modify … Read more
I’m trying to write a simple text file reader by creating a function that takes in the file’s path and converts each line of text into a char array, but it’s not working. function readTextFile() { var rawFile = new XMLHttpRequest(); rawFile.open(“GET”, “testing.txt”, true); rawFile.onreadystatechange = function() { if (rawFile.readyState === 4) { var allText … Read more
I’m developing a page that pulls images from Flickr and Panoramio via jQuery’s AJAX support. The Flickr side is working fine, but when I try to $.get(url, callback) from Panoramio, I see an error in Chrome’s console: XMLHttpRequest cannot load http://www.panoramio.com/wapi/data/get_photos?v=1&key=dummykey&tag=test&offset=0&length=20&callback=processImages&minx=-30&miny=0&maxx=0&maxy=150. Origin null is not allowed by Access-Control-Allow-Origin. If I query that URL from a … Read more
I’d like to send some data using an XMLHttpRequest in JavaScript. Say I have the following form in HTML: <form name=”inputform” action=”somewhere” method=”post”> <input type=”hidden” value=”person” name=”user”> <input type=”hidden” value=”password” name=”pwd”> <input type=”hidden” value=”place” name=”organization”> <input type=”hidden” value=”key” name=”requiredkey”> </form> How can I write the equivalent using an XMLHttpRequest in JavaScript? 13 s 13 The … Read more
Is there a way to allow multiple cross-domains using the Access-Control-Allow-Origin header? I’m aware of the *, but it is too open. I really want to allow just a couple domains. As an example, something like this: Access-Control-Allow-Origin: http://domain1.example, http://domain2.example I have tried the above code but it does not seem to work in Firefox. … Read more
I would like to upload a file asynchronously with jQuery. $(document).ready(function () { $(“#uploadbutton”).click(function () { var filename = $(“#file”).val(); $.ajax({ type: “POST”, url: “addFile.do”, enctype: ‘multipart/form-data’, data: { file: filename }, success: function () { alert(“Data Uploaded: “); } }); }); }); <script src=”https://cdnjs.cloudflare.com/ajax/libs/jquery/2.2.0/jquery.min.js”></script> <span>File</span> <input type=”file” id=”file” name=”file” size=”10″/> <input id=”uploadbutton” type=”button” value=”Upload”/> … Read more
