ajax Archives - Page 2 of 3

How to get response status code from jQuery.ajax?

In the following code, all I am trying to do is to get the HTTP response code from a jQuery.ajax call. Then, if ...

May 20, 2022
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Can an AJAX response set a cookie?

Can an AJAX response set a cookie? If not, what is my alternative solution? Should I set it with Javascript or something similar? ...

May 18, 2022
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jQuery.ajax handling continue responses: “success:” vs “.done”?

I have been working with jQuery and AJAX for a few weeks now and I saw two different ways to ‘continue’ the script ...

May 14, 2022
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jQuery $.ajax(), $.post sending “OPTIONS” as REQUEST_METHOD in Firefox

Having trouble with what I thought was a relatively simple jQuery plugin… The plugin should fetch data from a php script via ajax ...

May 13, 2022
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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 ...

May 10, 2022
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CORS: Cannot use wildcard in Access-Control-Allow-Origin when credentials flag is true

I have a setup involving Frontend server (Node.js, domain: localhost:3000) <—> Backend (Django, Ajax, domain: localhost:8000) Browser <– webapp <– Node.js (Serve the ...

May 7, 2022
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WebSockets protocol vs HTTP

There are many blogs and discussions about WebSocket and HTTP, and many developers and sites strongly advocate WebSockets, but I still can not ...

May 7, 2022
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Getting “net::ERR_BLOCKED_BY_CLIENT” error on some AJAX calls

Recently I’ve realised that, some adblocker extensions (such as adBlocker plus) block some Ajax calls. I get that error on the console: GET ...

May 6, 2022
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ASP.NET MVC controller actions that return JSON or partial html

I am trying to create controller actions which will return either JSON or partial html depending upon a parameter. What is the best ...

May 6, 2022
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What is the motivation behind the introduction of preflight CORS requests?

Cross-origin resource sharing is a mechanism that allows a web page to make XMLHttpRequests to another domain (from Wikipedia). I’ve been fiddling with ...

May 5, 2022
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