.ajax calling "error" when status = 200 but response is null

[[email protected]…]

I just upgraded from 1.8.2 to 1.9.1 and found that if the response to a ajax call is null (empty) jquery fires the "error" handler. This did not happen in 1.8.2. I am using this to change some settings on the server and there is no response needed to the call.

success: function(msg) {

if (callback != null) {

callback(msg);

}

}, error: function(msg) {

alert("Failed to load!");

}

[m_gol]

Thanks for taking the time to contribute to the jQuery project! Please provide a complete reduced test case on jsFiddle to help us assess your ticket!

Additionally, be sure to test against the "jQuery 1.x (edge)" or "jQuery 2.x (edge)" version to ensure the issue still exists—you may need to change this to a specific version depending on the test case.

For the AJAX-related tests you can create a few fiddles and submit requests to addresses with "/show/light" added to the end of the URL; example: ​http://jsfiddle.net/m_gol/3hwjC/17/show/light/

To get you started, use the appropriate boilerplate:

• jQuery 1.x ​http://jsfiddle.net/FrKyN/
• jQuery 2.x ​http://jsfiddle.net/BenVk/

Open the link and click to "Fork" (in the top menu) to begin.

Also, please read:

• ​http://blog.jquery.com/2013/04/18/jquery-2-0-released/
• ​http://blog.jquery.com/2013/01/15/jquery-1-9-final-jquery-2-0-beta-migrate-final-released/

Additional resources:

• Won't Fix: ​http://contribute.jquery.org/wont-fix/
• CLA: ​http://contribute.jquery.org/CLA/
• Style Guide: ​http://contribute.jquery.org/style-guide/js/

[trac-o-bot]

Because we get so many tickets, we often need to return them to the initial reporter for more information. If that person does not reply within 14 days, the ticket will automatically be closed, and that has happened in this case. If you still are interested in pursuing this issue, feel free to add a comment with the requested information and we will be happy to reopen the ticket if it is still valid. Thanks!