WS tool_mobile_get_public_config is failing on 3.3 sites using some auth plugins implementing identityproviders or mnet

Install and enable an auth plugin implemeting identity providers (loginpage_idp_list function) - for example mnet (moodle network) Execute the following curl command pointing to your local installation curl 'http://localhost/m/stable_master/lib/ajax/service.php' --data-binary ' [{"index":0,"methodname":"tool_mobile_get_public_config","args":{}}] ' | python -m "json.tool" And check that you receive in the curl response a identityproviders field including the information of the plugin you installed (the name, url and iconurl)