Patch for wizard URL path to take account of Discourse with subdirectory base URL.

assets/javascripts/discourse/controllers/admin-wizards-wizard-show.js.es6

@@ -36,6 +36,10 @@ export default Controller.extend({
 
   @discourseComputed("wizard.id")
   wizardUrl(wizardId) {
+    let baseUrl = (window.location.href).split('/admin');
+    if (baseUrl.length > 1) {
+      return baseUrl[0] + "/w/" + dasherize(wizardId);
+    } 
     return window.location.origin + "/w/" + dasherize(wizardId);
   },