diff --git a/addons/web_editor/static/src/js/wysiwyg/plugin/bullet.js b/addons/web_editor/static/src/js/wysiwyg/plugin/bullet.js
index 6a516dd2ad5..1d5c2d47a33 100644
--- a/addons/web_editor/static/src/js/wysiwyg/plugin/bullet.js
+++ b/addons/web_editor/static/src/js/wysiwyg/plugin/bullet.js
@@ -47,7 +47,7 @@ var BulletPlugin = AbstractPlugin.extend({
             res = this._convertList(false, [], start, end, type);
         } else {
             var ul = this._createList(type);
-            res = [].slice.call(ul.children);
+            res = ul ? [].slice.call(ul.children) : [];
         }
 
         var startLeaf = this.context.invoke('HelperPlugin.firstLeaf', start.node);
diff --git a/addons/web_editor/static/src/js/wysiwyg/plugin/helper.js b/addons/web_editor/static/src/js/wysiwyg/plugin/helper.js
index 521afe6137a..a025d6a0082 100644
--- a/addons/web_editor/static/src/js/wysiwyg/plugin/helper.js
+++ b/addons/web_editor/static/src/js/wysiwyg/plugin/helper.js
@@ -1047,6 +1047,7 @@ var HelperPlugin = AbstractPlugin.extend({
         var reAllNBSP = /\u00A0/g;
         var reMultipleSpace = /(\s){2,}/;
 
+        var textContent = range.sc.textContent;
         var startBlanks = range.sc.textContent.match(reStartBlanks)[0] || '';
         var endBlanks = range.sc.textContent.match(reEndBlanks)[0] || '';
         var trimmed = range.sc.textContent.replace(reStartBlanks, '').replace(reEndBlanks, '');
@@ -1060,7 +1061,25 @@ var HelperPlugin = AbstractPlugin.extend({
 
         this._removeInvisibleChar(range);
 
-        range.select();
+        try {
+            range.select();
+        } catch (e) {
+            /* Under certain unknown conditions, the range cannot be
+            applied and triggered an error. In order to allow the user to
+            keep editing, we need to prevent the dialog from showing, hence
+            the use of `console.error`.
+            If this error appears, the carret is moved to the beginning
+            of the focused node.*/
+            console.error(e);
+            console.error('Informations for debugging', [
+                ['textContent', textContent],
+                ['trimmed', trimmed],
+                ['cleanContents', cleanContents],
+                ['start', range.sc.outerHTML || range.sc.textContent, range.so],
+                ['end', range.ec.outerHTML || range.ec.textContent, range.eo],
+                ['parent', range.sc.parentNode && range.sc.parentNode.outerHTML],
+            ]);
+        }
         this.context.invoke('editor.saveRange');
     },
     /**