Why does my http://localhost CORS origin not work?
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 … Read more
xmlhttprequest
Why am I getting an OPTIONS request instead of a GET request?
<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 … Read more
Proper way to catch exception from JSON.parse
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 … Read more
Origin is not allowed by Access-Control-Allow-Origin
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 … Read more
How many concurrent AJAX (XmlHttpRequest) requests are allowed in popular browsers?
In Firefox 3, the answer is 6 per domain: as soon as a 7th XmlHttpRequest (on any tab) to the same domain is … Read more
How to read a local text file?
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 … Read more
“Origin null is not allowed by Access-Control-Allow-Origin” error for request made by application running from a file:// URL
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 … Read more
Send POST data using XMLHttpRequest
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”> … Read more
Access-Control-Allow-Origin Multiple Origin Domains?
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 … Read more
How can I upload files asynchronously with jQuery?
I would like to upload a file asynchronously with jQuery. $(document).ready(function () { $(“#uploadbutton”).click(function () { var filename = $(“#file”).val(); $.ajax({ type: “POST”, … Read more