diff --git a/importer/indico_importer/__init__.py b/importer/indico_importer/__init__.py
index ed18340..f898e9a 100644
--- a/importer/indico_importer/__init__.py
+++ b/importer/indico_importer/__init__.py
@@ -1,5 +1,5 @@
 from indico.core import signals
-from indico.core.plugins import IndicoPlugin, IndicoPluginBlueprint
+from indico.core.plugins import IndicoPlugin, IndicoPluginBlueprint, plugin_url_rule_to_js
 from MaKaC.webinterface.pages.conferences import WPConfModifScheduleGraphic
 
 from .controllers import RHDataImport, RHGetImporters
@@ -25,11 +25,15 @@ class ImporterPlugin(IndicoPlugin):
     def get_timetable_buttons(self, *args, **kwargs):
         yield ('Importer', 'createImporterDialog')
 
+    def get_vars_js(self):
+        return {'urls': {'import_data': plugin_url_rule_to_js('importer.import_data'),
+                         'importers': plugin_url_rule_to_js('importer.importers')}}
+
     def register_assets(self):
         self.register_js_bundle('importer_js', 'js/importer.js')
         self.register_css_bundle('importer_css', 'css/importer.css')
 
 
 blueprint = IndicoPluginBlueprint('importer', __name__)
-blueprint.add_url_rule('/import/<importer_name>', 'import', RHDataImport, methods=('GET', 'POST'))
+blueprint.add_url_rule('/import/<importer_name>', 'import_data', RHDataImport, methods=('GET', 'POST'))
 blueprint.add_url_rule('/importers', 'importers', RHGetImporters, methods=('GET', 'POST'))
diff --git a/importer/indico_importer/controllers.py b/importer/indico_importer/controllers.py
index 86db73a..0a42a74 100644
--- a/importer/indico_importer/controllers.py
+++ b/importer/indico_importer/controllers.py
@@ -15,7 +15,7 @@ class RHDataImport(RHProtected):
     def process(self, params):
         importer = current_plugin.importers.get(params['importer_name'])
         if not importer:
-            return 'No such importer available'
+            return jsonify(dict(success=False))
         query = params.get('query')
         size = params.get('size', 10)
         return importer.import_data(query, size)
diff --git a/importer/indico_importer/static/js/importer.js b/importer/indico_importer/static/js/importer.js
index 55207eb..c09de80 100644
--- a/importer/indico_importer/static/js/importer.js
+++ b/importer/indico_importer/static/js/importer.js
@@ -205,11 +205,17 @@ type("ImportDialog", ["ExclusivePopupWithButtons", "PreLoadHandler"], {
             /** Loads a list of importers from the server */
             function(hook) {
                 var self = this;
-                indicoRequest('importer.getImporters', {}, function(result, error) {
-                    if (!error) {
-                        self.importers = result;
+                $.ajax({
+                    url: build_url(ImporterPlugin.urls.importers, {}),
+                    type: 'POST',
+                    dataType: 'json',
+                    success: function(data) {
+                        if (handleAjaxError(data)) {
+                            return;
+                        }
+                        self.importers = data;
+                        hook.set(true);
                     }
-                    hook.set(true);
                 });
             }
         ],
@@ -636,21 +642,27 @@ type("ImporterListWidget", ["SelectableListWidget"], {
         _searchBase: function(query, importer, size, successFunc, callbacks) {
             var self = this;
             var killProgress = IndicoUI.Dialogs.Util.progress();
-            indicoRequest("importer.import",
-                    {'importer': importer,
-                     'query': query,
-                     // One more entry is fetched to be able to check if it's possible to fetch
-                     // more entries in case of further requests.
-                     'size': size + 1},
-                     function(result, error) {
-                         if (!error && result && successFunc) {
-                             successFunc(result);
-                         }
-                         each(callbacks, function(callback) {
-                             callback();
-                         });
-                         killProgress();
-                     });
+            $.ajax({
+                // One more entry is fetched to be able to check if it's possible to fetch
+                // more entries in case of further requests.
+                url: build_url(ImporterPlugin.urls.import_data, {'importer_name': importer,
+                                                                 'query': query,
+                                                                 'size': size + 1}),
+                type: 'POST',
+                dataType: 'json',
+                success: function(data) {
+                    if (handleAjaxError(data)) {
+                        return;
+                    }
+                    if (data.success) {
+                        successFunc(data.result);
+                    }
+                    each(callbacks, function(callback) {
+                        callback();
+                    });
+                    killProgress();
+                }
+            });
             //Saves last request data
             this.lastSearchImporter = importer;
             this.lastSearchQuery = query;