> What version of Moodle are you using ?
3.8.2+. I installed 3.8 two weeks ago and it came up with two updates in just these two weeks. > Our custom moodle plugin works with moodle 3.2 and OM 3 > but we have to make sure ssl and host checking is not activated > in the plugin settings. I tried all combinations, i.e. both on, SSL on and host off, SSL off and host on, both off; I got the error on all of them. Later, because "invalid hash" sounds like something that could have to do with encryption, I put "address=[public IP] and "Redirect=5443" on all non-SSL connectors. This way I can be sure that there can be no switching from SSL to plaintext and no switching from exthost to localhost that could mess things up. Well, nothing of this helped, but at least OM is now fully encrypted. > If we move our plugin to moodle 3.5 we get the hash error. Logically then, if the same plugin and the same OM server work with one moddle and not with another, we can suspect that moodle 3.5+ mangles some of the communication between the plugin and the OM-server or between the plugin and the browser. I have to figure a way to debug them pairwise at the same time :( Maxim, I'm not asking for support - you are already giving plenty - but you know these things much better than I do and you also need them to work, so, if you have a GPG key, I'll gladly give you root on the server and admin on OM and moodle. Cheers, Z
