diff --git a/.gitignore b/.gitignore
index f0873ffa3..3a5d655ed 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,9 +7,10 @@
 ## system files
 .DS_Store
 
-## npm
+## npm/yarn
 node_modules/
 npm-debug.log
+yarn-error.log
 
 # we do prefer yarn.lock so we do not want npms version of it
 /package-lock.json
diff --git a/packages/input-datepicker/src/LionInputDatepicker.js b/packages/input-datepicker/src/LionInputDatepicker.js
index e0083f188..00ed23894 100644
--- a/packages/input-datepicker/src/LionInputDatepicker.js
+++ b/packages/input-datepicker/src/LionInputDatepicker.js
@@ -151,7 +151,6 @@ export class LionInputDatepicker extends LionInputDate {
 
   constructor() {
     super();
-    // Create a unique id for the invoker, since it is placed in light dom for a11y.
     this.__invokerId = this.__createUniqueIdForA11y();
     this._calendarInvokerSlot = 'suffix';
 
@@ -272,7 +271,7 @@ export class LionInputDatepicker extends LionInputDate {
   // eslint-disable-next-line class-methods-use-this
   _invokerTemplate() {
     // TODO: aria-expanded should be toggled by Overlay system, to allow local overlays
-    // (a.k.a. dropdowns) as well
+    // (a.k.a. dropdowns) as well. Important: will be breaking for subclassers
     return html`
       <button
         @click="${this.__openCalendarOverlay}"
@@ -287,7 +286,6 @@ export class LionInputDatepicker extends LionInputDate {
     `;
   }
 
-  // Renders the invoker button + the calendar overlay invoked by this button
   __createPickerAndReturnInvokerNode() {
     const renderParent = document.createElement('div');
     render(this._invokerTemplate(), renderParent);
diff --git a/packages/input-datepicker/stories/index.stories.js b/packages/input-datepicker/stories/index.stories.js
index 7ab913cdf..6f0ba74fd 100644
--- a/packages/input-datepicker/stories/index.stories.js
+++ b/packages/input-datepicker/stories/index.stories.js
@@ -25,10 +25,10 @@ storiesOf('Forms|Input Datepicker', module)
     `,
   )
   .add(
-    'disabledDatesValidator',
+    'isDateDisabledValidator',
     () => html`
       <lion-input-datepicker
-        label="disabledDates"
+        label="isDateDisabled"
         help-text="You're not allowed to choose the 15th"
         .errorValidators=${[isDateDisabledValidator(d => d.getDate() === 15)]}
       >