diff --git a/addons/web/static/src/legacy/js/core/ajax.js b/addons/web/static/src/legacy/js/core/ajax.js
index 71484e5c9d8..3e694c472cd 100644
--- a/addons/web/static/src/legacy/js/core/ajax.js
+++ b/addons/web/static/src/legacy/js/core/ajax.js
@@ -97,17 +97,11 @@ function _genericJsonRpc (fct_name, params, settings, fct) {
     });
 
     // FIXME: jsonp?
-    /**
-     * @param {Boolean} rejectError Returns an error if true. Allows you to cancel
-     *                  ignored rpc's in order to unblock the ui and not display an error.
-     */
-    promise.abort = function (rejectError = true) {
-        if (rejectError) {
-            rejection({
-                message: "XmlHttpRequestError abort",
-                event: $.Event('abort')
-            });
-        }
+    promise.abort = function () {
+        rejection({
+            message: "XmlHttpRequestError abort",
+            event: $.Event('abort')
+        });
 
         if (!shadow) {
             core.bus.trigger('rpc_response');
diff --git a/addons/web/static/src/legacy/js/fields/relational_fields.js b/addons/web/static/src/legacy/js/fields/relational_fields.js
index 48a12a91db1..d78da7bc3a4 100644
--- a/addons/web/static/src/legacy/js/fields/relational_fields.js
+++ b/addons/web/static/src/legacy/js/fields/relational_fields.js
@@ -641,6 +641,10 @@ var FieldMany2One = AbstractField.extend({
         }
 
         if (this.lastNameSearch) {
+            this.lastNameSearch.catch((reason) => {
+                // the last rpc name_search will be aborted, so we want to ignore its rejection
+                reason.event.preventDefault();
+            })
             this.lastNameSearch.abort(false)
         }
         this.lastNameSearch = this._rpc({