Hi c.note!
Sorry for my late reply. This little zerochar is bugging me to death. I don’t know why this happens yet, but I tried a lot of things and I think the problem is related to the way I parse the output. Hopefully I will figure this out until next release. (FYI: I’m using nonces to authenticate just as the rest of the admin, so this is as secure as rest of wp admin).
Tobias, I have a clue on the origin of that stray zero char …
Stick this in your browser’s address bar:
http://tobiasnygren.se/wp-admin/admin-ajax.php
Use any other wordpress site’s domain name … the admin-ajax.php must be returning a false or zero after some internal function.
Thank you so much for digging Ron! That means I have to filter the return data, I have to look in to this asap.
“If the AJAX request fails when the request url is wp-admin/admin-ajax.php, it will return either -1 or 0 depending on the reason it failed. Additionally, if an AJAX request succeeds, it will return a 0.”
http://codex.wordpress.org/AJAX_in_Plugins#Error_Return_Values
I’m working with some ajax post/response logic and notice that occasionally I get a zero char in my response when the php-ajax side does not execute a die() or exit() statement. It can be successful, but still not terminated properly. Hope this is another useful clue.
Hello Tobias!
This problem is easily resolved by using die(); instead of a traditional return/echo in the admin ajax function. If you do not run die it will continue to execute, therefore returning unwanted numerics. Let me know how this works out for you 🙂
Best regards,
Jonathan
