For a while now I have been unable to use DD Updater because of this error:
Warning! Our test AJAX request failed! We sent an AJAX request to but the response was invalid.
I don't recall if the error started when I upgraded the module or when I moved to a different host, regardless I'm using EE2.5.5 and I have upgraded to the latest version of updater today (3.2.9) with no success. I tried changing several settings and nothing changed, can anyone point me in the right direction? The ajax response is blank btw.