Atlas 4: Only 2 calls at a time and don't expect any order
Author:
Omar AL Zabir
Browsers make two concurrent AJAX calls at a time to a domain. If you make five AJAX calls, browser is going to make two calls first, then wait for any one of them to complete and then make another call until all remaining four calls are complete. Moreover, you cannot expect calls to receive a response in the same order as you make the calls.
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