diff --git a/addons/web/static/lib/owl/owl.js b/addons/web/static/lib/owl/owl.js
index 29aa09cebb5..fc748477910 100644
--- a/addons/web/static/lib/owl/owl.js
+++ b/addons/web/static/lib/owl/owl.js
@@ -2818,8 +2818,10 @@
         set(mode) {
             QWeb.dev = mode === "dev";
             if (QWeb.dev) {
-                const url = `https://github.com/odoo/owl/blob/master/doc/reference/config.md#mode`;
-                console.warn(`Owl is running in 'dev' mode.  This is not suitable for production use. See ${url} for more information.`);
+                console.info(`Owl is running in 'dev' mode.
+
+This is not suitable for production use.
+See https://github.com/odoo/owl/blob/master/doc/reference/config.md#mode for more information.`);
             }
             else {
                 console.log(`Owl is now running in 'prod' mode.`);
diff --git a/addons/web/static/tests/helpers/mock_server.js b/addons/web/static/tests/helpers/mock_server.js
index 34058a7955f..f677b3e7298 100644
--- a/addons/web/static/tests/helpers/mock_server.js
+++ b/addons/web/static/tests/helpers/mock_server.js
@@ -242,7 +242,7 @@ export class MockServer {
                     // TODO
                     // const pyevalContext = window.py.dict.fromJSON(context || {});
                     // var v = pyUtils.py_eval(mod, {context: pyevalContext}) ? true : false;
-                    console.warn("MockServer: naive parse of modifier value");
+                    console.info("MockServer: naive parse of modifier value in", QUnit.config.current.testName);
                     const v = JSON.parse(mod);
                     if (inTreeView && !inListHeader && attr === "invisible") {
                         modifiers.column_invisible = v;
@@ -808,7 +808,7 @@ export class MockServer {
                     res[groupByField] = val;
                 }
                 if (field.type === "date" && val) {
-                    console.warn("Mock Server: read group not fully implemented (moment stuff)");
+                    console.info("Mock Server: read group not fully implemented (moment stuff) in", QUnit.config.current.testName);
                     // const aggregateFunction = groupByField.split(':')[1];
                     // let startDate;
                     // let endDate;