Project: moodle
Issue MDL-43325: Some dialogues (exceptions, ajaxexception, confirm, etc) are no longer shown when instantiated
They used to be... and should still be. We were previously ignoring the 'visible' field. We now respect it (sanity prevails), but should be changing the default to true for all but the base dialogue. Note, although everywhere that we have confirm and alert dialogues in core, we already forcibly call show, or we set visible: true in it's config, but this is still a change from the API which has existed for quite some time so should be fixed. Exceptions and ajaxExceptions no longer display at all in many places.
Story points: 3