[FIX] web: ajax must return a promise with abort method

Remove part in service_mixins who hide this error. Queries must be able
to be canceled for better performance. Also in the case of longpolling,
if the request is not canceled, wait for a server message or the maximum
time (30 sec) to add or delete channels.

1 files changed, 7 insertions, 2 deletions

diff --git a/addons/web/static/src/js/core/session.js b/addons/web/static/src/js/core/session.js
index 09b65357404..694285cccdc 100644
--- a/addons/web/static/src/js/core/session.js
+++ b/addons/web/static/src/js/core/session.js
@@ -344,9 +344,11 @@ var Session = core.Class.extend(mixins.EventDispatcherMixin, {
             }
         };
 
-        return deferred.then(function () {
+        var promise = deferred.then(function () {
             if (aborted) {
-                return $.Deferred().reject('communication', $.Event(), 'abort', 'abort');
+                var def = $.Deferred().reject({message: "XmlHttpRequestError abort"}, $.Event('abort'));
+                def.abort = function () {};
+                return def;
             }
             // TODO: remove
             if (! _.isString(url)) {
@@ -374,6 +376,9 @@ var Session = core.Class.extend(mixins.EventDispatcherMixin, {
             xhrDef = fct(url, "call", params, options);
             return xhrDef;
         });
+
+        promise.abort = deferred.abort;
+        return promise;
     },
     url: function (path, params) {
         params = _.extend(params || {});