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Simple question but I cannot find any online documentation for the jquery success event in ajax.
What qualifies as a successfull ajax request?
Does the ajax have to send a value back to the javascript?
And if the above answer is no, how does JQuery know it was a success?
See source here: https://github.com/jquery/jquery/blob/master/src/ajax.js#L520
If the status code is 2xx or 304 (Not modified) then it is considered successful. The server doesn’t have to respond with any content beyond the appropriate headers.