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I've seen a couple questions around here like How to debug RESTful services , which mentions:

Im using $.post() to call a Servlet using Ajax and then use the resulting HTML fragment to replace a div element in the User's current page. However, if the session timeouts the server sends a redirect directive to send the user to the login page. Nonetheless, JQuery is replacing the div element with the contents of the login page, forcing the user's eyes to witness a rare scene indeed.

Using jQuery, how can I cancel/abort an Ajax request that I have not yet received the response from?

I would like to upload a file asynchronously with JQuery. This is my HTML:

I'm taking my first crack at Ajax with jQuery. I'm getting my data onto my page, but I'm having some trouble with the JSON data that is returned for Date data types. Basically, I'm getting a string back that looks like this:

I created a web page that makes an Ajax call every second. In Internet Explorer 7, it leaks memory badly (20 MB in about 15 minutes).

All HTTP responses require the client to initiate them, even those made using AJAX. But GMail's chat feature is able to receive messages from other users, even when I'm just sitting in my comfy computer chair watching but not interacting with the browser. How did they do it?

In Firefox, I use Firebug which allows me to view every http request my ajax calls are making. I've switched over my development to Chrome and am liking it so far. My only complaint, however, is that the developer tools don't seem to allow you to view each ajax request. I've had it happen once where the Resources panel showed multiple requests to the same resource, but it's only done it once and never again.

I have trolled the net + Stackoverflow and have not found an adequate answer to this question and before I start the trial and error process of finding my own solution, I thought I would turn to the Stackoverflow braintrust and see if there was already a successful implementation.

It seems most everyone does asynchronous requests with XMLHttpRequest but obviously the fact that there is the ability to do synchronous requests indicates there might be a valid reason to do so. So what might that valid reason be?

I'm having a serious issue with Internet Explorer caching results from a JQuery Ajax request.

Hey fellow jQuery lovers, To add some basic error handling, I wanted to rewrite a piece of code that used jQuery's $.getJSON to pull in some photo's from Flickr. The reason for doing this is that $.getJSON doesn't provide error handling or work with timeouts.

I am creating an ajax chat in rails and I am trying to get a div to scroll to the bottom without much luck.

Which and why is the best AJAX library for django? Which one has the biggest database of tutorials, books and most detailed documentation?

This is a design question. I have data that needs to go into an HTML table, which will later be manipulated by the user. Basically the user will be able to select items in the table rows.

I'm doing some simple tests (in preparation for a larger project) to call an ASP.NET WebMethod using JQuery AJAX. In my example, my WebMethod returns a simple string. However, when I attempt to call it using JQuery, I get the entire HTML page content returned instead of just my string. What am I missing?

For server side generated content, i18n support is usually pretty easy, for example, Java provides extensive i18n support.

Google returns json like this: throw 1; <dont be evil> { foo: bar}

I either dreamt about chrome (dev channel) implementing a way to update the address bar via javascript (the path, not domain) without reloading the page or they really have done this...

Go to http://www.facebook.com/facebook?v=wall , then click on the info tab. The content will be loaded, and the address bar now becomes http://www.facebook.com/facebook?v=info but the webpage didn't reload.