diff --git a/front/src/components/Pagination.vue b/front/src/components/Pagination.vue
index 8e04a95c6..fd3cf0ec2 100644
--- a/front/src/components/Pagination.vue
+++ b/front/src/components/Pagination.vue
@@ -7,7 +7,7 @@
   >
     <a
       href
-      :disabled="current - 1 < 1"
+      :disabled="current - 1 < 1 || null"
       role="button"
       :aria-label="labels.previousPage"
       :class="[{'disabled': current - 1 < 1}, 'item']"
@@ -27,7 +27,7 @@
     </template>
     <a
       href
-      :disabled="current + 1 > maxPage"
+      :disabled="current + 1 > maxPage || null"
       role="button"
       :aria-label="labels.nextPage"
       :class="[{'disabled': current + 1 > maxPage}, 'item']"
diff --git a/front/src/components/Queue.vue b/front/src/components/Queue.vue
index 017ef52d8..ab7474eb0 100644
--- a/front/src/components/Queue.vue
+++ b/front/src/components/Queue.vue
@@ -157,7 +157,7 @@
                     :title="labels.previousTrack"
                     :aria-label="labels.previousTrack"
                     class="control"
-                    :disabled="emptyQueue ? true : null"
+                    :disabled="emptyQueue || null"
                     @click.prevent.stop="$store.dispatch('queue/previous')"
                   >
                     <i :class="['ui', 'backward step', {'disabled': emptyQueue}, 'icon']" />
@@ -188,7 +188,7 @@
                     :title="labels.next"
                     :aria-label="labels.next"
                     class="control"
-                    :disabled="hasNext ? true : null"
+                    :disabled="hasNext || null"
                     @click.prevent.stop="$store.dispatch('queue/next')"
                   >
                     <i :class="['ui', {'disabled': !hasNext}, 'forward step', 'icon']" />
diff --git a/front/src/components/RemoteSearchForm.vue b/front/src/components/RemoteSearchForm.vue
index 22482771a..b0a2f3139 100644
--- a/front/src/components/RemoteSearchForm.vue
+++ b/front/src/components/RemoteSearchForm.vue
@@ -75,7 +75,7 @@
         v-if="showSubmit"
         type="submit"
         :class="['ui', 'primary', {loading: isLoading}, 'button']"
-        :disabled="isLoading || !id || id.length === 0"
+        :disabled="isLoading || !id || id.length === 0 || null"
       >
         <translate translate-context="Content/Search/Input.Label/Noun">
           Search
diff --git a/front/src/components/admin/SignupFormBuilder.vue b/front/src/components/admin/SignupFormBuilder.vue
index e6f8f5e23..da5ca79a5 100644
--- a/front/src/components/admin/SignupFormBuilder.vue
+++ b/front/src/components/admin/SignupFormBuilder.vue
@@ -121,14 +121,14 @@
               </td>
               <td>
                 <i
-                  :disabled="idx === 0"
+                  :disabled="idx === 0 || null"
                   role="button"
                   :title="labels.up"
                   :class="['up', 'arrow', {disabled: idx === 0}, 'icon']"
                   @click="move(idx, -1)"
                 />
                 <i
-                  :disabled="idx >= local.fields.length - 1"
+                  :disabled="idx >= local.fields.length - 1 || null"
                   role="button"
                   :title="labels.down"
                   :class="['down', 'arrow', {disabled: idx >= local.fields.length - 1}, 'icon']"
diff --git a/front/src/components/audio/ChannelForm.vue b/front/src/components/audio/ChannelForm.vue
index 6823cd6da..6849d1861 100644
--- a/front/src/components/audio/ChannelForm.vue
+++ b/front/src/components/audio/ChannelForm.vue
@@ -78,8 +78,8 @@
             <input
               v-model="newValues.username"
               type="text"
-              :required="creating"
-              :disabled="!creating"
+              :required="creating || null"
+              :disabled="!creating || null"
               :placeholder="labels.usernamePlaceholder"
             >
           </div>
@@ -183,7 +183,7 @@
               id="itunes-category"
               v-model="newValues.metadata.itunes_subcategory"
               name="itunes-category"
-              :disabled="!newValues.metadata.itunes_category"
+              :disabled="!newValues.metadata.itunes_category || null"
               class="ui dropdown"
             >
               <option
diff --git a/front/src/components/audio/PlayButton.vue b/front/src/components/audio/PlayButton.vue
index 8bb50d74d..6bbfc50a5 100644
--- a/front/src/components/audio/PlayButton.vue
+++ b/front/src/components/audio/PlayButton.vue
@@ -5,7 +5,7 @@
   >
     <button
       v-if="!dropdownOnly"
-      :disabled="!playable"
+      :disabled="!playable || null"
       :aria-label="labels.replacePlay"
       :class="buttonClasses.concat(['ui', {loading: isLoading}, {'mini': discrete}, {disabled: !playable}])"
       @click.stop.prevent="replacePlay"
@@ -37,7 +37,7 @@
           ref="add"
           class="item basic"
           data-ref="add"
-          :disabled="!playable"
+          :disabled="!playable || null"
           :title="labels.addToQueue"
           @click.stop.prevent="add"
         >
@@ -47,7 +47,7 @@
           ref="addNext"
           class="item basic"
           data-ref="addNext"
-          :disabled="!playable"
+          :disabled="!playable || null"
           :title="labels.playNext"
           @click.stop.prevent="addNext()"
         >
@@ -57,7 +57,7 @@
           ref="playNow"
           class="item basic"
           data-ref="playNow"
-          :disabled="!playable"
+          :disabled="!playable || null"
           :title="labels.playNow"
           @click.stop.prevent="addNext(true)"
         >
@@ -66,7 +66,7 @@
         <button
           v-if="track"
           class="item basic"
-          :disabled="!playable"
+          :disabled="!playable || null"
           :title="labels.startRadio"
           @click.stop.prevent="$store.dispatch('radios/start', {type: 'similar', objectId: track.id})"
         >
@@ -75,7 +75,7 @@
         <button
           v-if="track"
           class="item basic"
-          :disabled="!playable"
+          :disabled="!playable || null"
           @click.stop="$store.commit('playlists/chooseTrack', track)"
         >
           <i class="list icon" />
@@ -102,7 +102,7 @@
           ref="filterArtist"
           data-ref="filterArtist"
           class="item basic"
-          :disabled="!filterableArtist"
+          :disabled="!filterableArtist || null"
           :title="labels.hideArtist"
           @click.stop.prevent="filterArtist"
         >
diff --git a/front/src/components/audio/Player.vue b/front/src/components/audio/Player.vue
index 59e5eeb13..6b1f8f04c 100644
--- a/front/src/components/audio/Player.vue
+++ b/front/src/components/audio/Player.vue
@@ -146,7 +146,7 @@
             :title="labels.previous"
             :aria-label="labels.previous"
             class="circular button control tablet-and-up"
-            :disabled="!hasPrevious"
+            :disabled="!hasPrevious || null"
             @click.prevent.stop="$store.dispatch('queue/previous')"
           >
             <i :class="['ui', 'large', {'disabled': !hasPrevious}, 'backward step', 'icon']" />
@@ -173,7 +173,7 @@
             :title="labels.next"
             :aria-label="labels.next"
             class="circular button control"
-            :disabled="!hasNext"
+            :disabled="!hasNext || null"
             @click.prevent.stop="$store.dispatch('queue/next')"
           >
             <i :class="['ui', 'large', {'disabled': !hasNext}, 'forward step', 'icon']" />
@@ -199,7 +199,7 @@
               class="circular control button"
               :title="labels.loopingDisabled"
               :aria-label="labels.loopingDisabled"
-              :disabled="!currentTrack"
+              :disabled="!currentTrack || null"
               @click.prevent.stop="$store.commit('player/looping', 1)"
             >
               <i :class="['ui', {'disabled': !currentTrack}, 'step', 'repeat', 'icon']" />
@@ -209,7 +209,7 @@
               class="looping circular control button"
               :title="labels.loopingSingle"
               :aria-label="labels.loopingSingle"
-              :disabled="!currentTrack"
+              :disabled="!currentTrack || null"
               @click.prevent.stop="$store.commit('player/looping', 2)"
             >
               <i
@@ -223,7 +223,7 @@
               class="looping circular control button"
               :title="labels.loopingWhole"
               :aria-label="labels.loopingWhole"
-              :disabled="!currentTrack"
+              :disabled="!currentTrack || null"
               @click.prevent.stop="$store.commit('player/looping', 0)"
             >
               <i
@@ -234,7 +234,7 @@
             </button>
             <button
               class="circular control button"
-              :disabled="queueIsEmpty"
+              :disabled="queueIsEmpty || null"
               :title="labels.shuffle"
               :aria-label="labels.shuffle"
               @click.prevent.stop="shuffle()"
diff --git a/front/src/components/auth/SignupForm.vue b/front/src/components/auth/SignupForm.vue
index b271bd9c2..a59ad7d8f 100644
--- a/front/src/components/auth/SignupForm.vue
+++ b/front/src/components/auth/SignupForm.vue
@@ -127,7 +127,7 @@
           v-if="field.input_type === 'long_text'"
           :id="`custom-field-${idx}`"
           :value="customFields[field.label]"
-          :required="field.required"
+          :required="field.required || null"
           rows="5"
           @input="$set(customFields, field.label, $event.target.value)"
         />
@@ -136,7 +136,7 @@
           :id="`custom-field-${idx}`"
           type="text"
           :value="customFields[field.label]"
-          :required="field.required"
+          :required="field.required || null"
           @input="$set(customFields, field.label, $event.target.value)"
         >
       </div>
diff --git a/front/src/components/channels/AlbumModal.vue b/front/src/components/channels/AlbumModal.vue
index a42a9672f..1468abe63 100644
--- a/front/src/components/channels/AlbumModal.vue
+++ b/front/src/components/channels/AlbumModal.vue
@@ -36,7 +36,7 @@
       </button>
       <button
         :class="['ui', 'primary', {loading: isLoading}, 'button']"
-        :disabled="!submittable"
+        :disabled="!submittable || null"
         @click.stop.prevent="$refs.albumForm.submit()"
       >
         <translate translate-context="*/*/Button.Label">
diff --git a/front/src/components/channels/UploadModal.vue b/front/src/components/channels/UploadModal.vue
index df44521c2..7248ff5a2 100644
--- a/front/src/components/channels/UploadModal.vue
+++ b/front/src/components/channels/UploadModal.vue
@@ -100,7 +100,7 @@
         <button
           :class="['ui', 'primary button', {loading: isLoading}]"
           type="submit"
-          :disabled="!statusData || !statusData.canSubmit"
+          :disabled="!statusData || !statusData.canSubmit || null"
           @click.prevent.stop="$refs.uploadForm.publish"
         >
           <translate translate-context="*/Channels/Button.Label">
@@ -111,7 +111,7 @@
           ref="dropdown"
           v-dropdown
           class="ui floating dropdown icon button"
-          :disabled="!statusData || !statusData.canSubmit"
+          :disabled="!statusData || !statusData.canSubmit || null"
         >
           <i class="dropdown icon" />
           <div class="menu">
diff --git a/front/src/components/common/ActionTable.vue b/front/src/components/common/ActionTable.vue
index b8ef8f170..362fb6dca 100644
--- a/front/src/components/common/ActionTable.vue
+++ b/front/src/components/common/ActionTable.vue
@@ -89,7 +89,7 @@
                   </dangerous-button>
                   <button
                     v-else
-                    :disabled="checked.length === 0"
+                    :disabled="checked.length === 0 || null"
                     :aria-label="labels.performAction"
                     :class="['ui', {disabled: checked.length === 0}, {'loading': actionLoading}, 'button']"
                     @click="launchAction"
@@ -199,7 +199,7 @@
               <input
                 type="checkbox"
                 :aria-label="labels.selectAllItems"
-                :disabled="checkable.length === 0"
+                :disabled="checkable.length === 0 || null"
                 :checked="checkable.length > 0 && checked.length === checkable.length"
                 @change="toggleCheckAll"
               >
@@ -220,7 +220,7 @@
             <input
               type="checkbox"
               :aria-label="labels.selectItem"
-              :disabled="checkable.indexOf(getId(obj)) === -1"
+              :disabled="checkable.indexOf(getId(obj)) === -1 || null"
               :checked="checked.indexOf(getId(obj)) > -1"
               @click="toggleCheck($event, getId(obj), index)"
             >
diff --git a/front/src/components/common/ContentForm.vue b/front/src/components/common/ContentForm.vue
index e263d092d..7b6c777f0 100644
--- a/front/src/components/common/ContentForm.vue
+++ b/front/src/components/common/ContentForm.vue
@@ -49,7 +49,7 @@
             v-model="newValue"
             :name="fieldId"
             :rows="rows"
-            :required="required"
+            :required="required || null"
             :placeholder="placeholder || labels.placeholder"
           />
         </div>
diff --git a/front/src/components/common/DangerousButton.vue b/front/src/components/common/DangerousButton.vue
index 0129a1863..2276cdc69 100644
--- a/front/src/components/common/DangerousButton.vue
+++ b/front/src/components/common/DangerousButton.vue
@@ -1,7 +1,7 @@
 <template>
   <button
     :class="[{disabled: disabled}]"
-    :disabled="disabled"
+    :disabled="disabled || null"
     @click.prevent.stop="showModal = true"
   >
     <slot />
diff --git a/front/src/components/common/RenderedDescription.vue b/front/src/components/common/RenderedDescription.vue
index 2c4797350..aab47ca58 100644
--- a/front/src/components/common/RenderedDescription.vue
+++ b/front/src/components/common/RenderedDescription.vue
@@ -72,7 +72,7 @@
       <button
         :class="['ui', {'loading': isLoading}, 'right', 'floated', 'button']"
         type="submit"
-        :disabled="isLoading"
+        :disabled="isLoading || null"
       >
         <translate translate-context="Content/Channels/Button.Label/Verb">
           Update description
diff --git a/front/src/components/library/EditForm.vue b/front/src/components/library/EditForm.vue
index 68813b262..547fdb582 100644
--- a/front/src/components/library/EditForm.vue
+++ b/front/src/components/library/EditForm.vue
@@ -107,7 +107,7 @@
               :id="fieldConfig.id"
               v-model="values[fieldConfig.id]"
               :type="fieldConfig.inputType || 'text'"
-              :required="fieldConfig.required"
+              :required="fieldConfig.required || null"
               :name="fieldConfig.id"
             >
           </template>
@@ -118,7 +118,7 @@
               :id="fieldConfig.id"
               ref="license"
               v-model="values[fieldConfig.id]"
-              :required="fieldConfig.required"
+              :required="fieldConfig.required || null"
               class="ui fluid search dropdown"
             >
               <option :value="null">
@@ -158,7 +158,7 @@
               :id="fieldConfig.id"
               v-model="values[fieldConfig.id]"
               :initial-value="initialValues[fieldConfig.id]"
-              :required="fieldConfig.required"
+              :required="fieldConfig.required || null"
               :name="fieldConfig.id"
               @delete="values[fieldConfig.id] = initialValues[fieldConfig.id]"
             >
@@ -220,7 +220,7 @@
       <button
         :class="['ui', {'loading': isLoading}, 'right', 'floated', 'success', 'button']"
         type="submit"
-        :disabled="isLoading || !mutationPayload"
+        :disabled="isLoading || !mutationPayload || null"
       >
         <translate
           v-if="canEdit"
diff --git a/front/src/components/library/EditList.vue b/front/src/components/library/EditList.vue
index ac46a28fc..8ae20ed13 100644
--- a/front/src/components/library/EditList.vue
+++ b/front/src/components/library/EditList.vue
@@ -9,7 +9,7 @@
     />
     <button
       v-if="nextPage || previousPage"
-      :disabled="!previousPage"
+      :disabled="!previousPage || null"
       :class="['ui', {disabled: !previousPage}, 'circular', 'icon', 'basic', 'button']"
       @click="fetchData(previousPage)"
     >
@@ -17,7 +17,7 @@
     </button>
     <button
       v-if="nextPage || previousPage"
-      :disabled="!nextPage"
+      :disabled="!nextPage || null"
       :class="['ui', {disabled: !nextPage}, 'circular', 'icon', 'basic', 'button']"
       @click="fetchData(nextPage)"
     >
diff --git a/front/src/components/library/radios/Builder.vue b/front/src/components/library/radios/Builder.vue
index b40b4d740..86343ad41 100644
--- a/front/src/components/library/radios/Builder.vue
+++ b/front/src/components/library/radios/Builder.vue
@@ -64,7 +64,7 @@
             </div>
             <div class="ui hidden divider" />
             <button
-              :disabled="!canSave"
+              :disabled="!canSave || null"
               :class="['ui', 'success', {loading: isLoading}, 'button']"
               @click="save"
             >
@@ -105,7 +105,7 @@
             </select>
             <button
               id="addFilter"
-              :disabled="!currentFilterType"
+              :disabled="!currentFilterType || null"
               class="ui button"
               @click="add"
             >
diff --git a/front/src/components/manage/library/EditsCardList.vue b/front/src/components/manage/library/EditsCardList.vue
index b1c9cefe3..28aba1190 100644
--- a/front/src/components/manage/library/EditsCardList.vue
+++ b/front/src/components/manage/library/EditsCardList.vue
@@ -90,7 +90,7 @@
       >
         <div class="ui loader" />
       </div>
-      <div v-else-if="result && result.count > 0">
+      <div v-else-if="result?.count > 0">
         <edit-card
           v-for="obj in result.results"
           :key="obj.uuid"
diff --git a/front/src/components/manage/moderation/InstancePolicyForm.vue b/front/src/components/manage/moderation/InstancePolicyForm.vue
index b7fb5c545..755d7a412 100644
--- a/front/src/components/manage/moderation/InstancePolicyForm.vue
+++ b/front/src/components/manage/moderation/InstancePolicyForm.vue
@@ -123,7 +123,7 @@
     </button>
     <button
       :class="['ui', 'right', 'floated', 'success', {'disabled loading': isLoading}, 'button']"
-      :disabled="isLoading"
+      :disabled="isLoading || null"
     >
       <translate
         v-if="object"
diff --git a/front/src/components/manage/moderation/NoteForm.vue b/front/src/components/manage/moderation/NoteForm.vue
index 1b767675d..4a2913ca2 100644
--- a/front/src/components/manage/moderation/NoteForm.vue
+++ b/front/src/components/manage/moderation/NoteForm.vue
@@ -34,7 +34,7 @@
     <button
       :class="['ui', {'loading': isLoading}, 'right', 'floated', 'button']"
       type="submit"
-      :disabled="isLoading"
+      :disabled="isLoading || null"
     >
       <translate translate-context="Content/Moderation/Button.Label/Verb">
         Add note
diff --git a/front/src/components/manage/users/InvitationForm.vue b/front/src/components/manage/users/InvitationForm.vue
index 72011a6aa..a1a201a52 100644
--- a/front/src/components/manage/users/InvitationForm.vue
+++ b/front/src/components/manage/users/InvitationForm.vue
@@ -37,7 +37,7 @@
         <div class="ui field">
           <button
             :class="['ui', {loading: isLoading}, 'button']"
-            :disabled="isLoading"
+            :disabled="isLoading || null"
             type="submit"
           >
             <translate translate-context="Content/Admin/Button.Label/Verb">
diff --git a/front/src/components/moderation/ReportCategoryDropdown.vue b/front/src/components/moderation/ReportCategoryDropdown.vue
index 33a507e81..0b5ef81af 100644
--- a/front/src/components/moderation/ReportCategoryDropdown.vue
+++ b/front/src/components/moderation/ReportCategoryDropdown.vue
@@ -4,7 +4,7 @@
     <select
       class="ui dropdown"
       :value="value"
-      :required="required"
+      :required="required || null"
       @change="$emit('input', $event.target.value)"
     >
       <option
diff --git a/front/src/components/playlists/Editor.vue b/front/src/components/playlists/Editor.vue
index 127f1255c..c137e8a34 100644
--- a/front/src/components/playlists/Editor.vue
+++ b/front/src/components/playlists/Editor.vue
@@ -74,7 +74,7 @@
     </div>
     <div class="ui bottom attached segment">
       <button
-        :disabled="queueTracks.length === 0"
+        :disabled="queueTracks.length === 0 || null"
         :class="['ui', {disabled: queueTracks.length === 0}, 'labeled', 'icon', 'button']"
         :title="labels.copyTitle"
         @click="insertMany(queueTracks, false)"
@@ -91,7 +91,7 @@
       </button>
 
       <dangerous-button
-        :disabled="plts.length === 0"
+        :disabled="plts.length === 0 || null"
         class="ui labeled right floated danger icon button"
         :action="clearPlaylist"
       >
diff --git a/front/src/views/admin/moderation/DomainsList.vue b/front/src/views/admin/moderation/DomainsList.vue
index 9731ac3c2..9e72c1739 100644
--- a/front/src/views/admin/moderation/DomainsList.vue
+++ b/front/src/views/admin/moderation/DomainsList.vue
@@ -55,7 +55,7 @@
             <button
               :class="['ui', {'loading': isCreating}, 'success', 'button']"
               type="submit"
-              :disabled="isCreating"
+              :disabled="isCreating || null"
             >
               <translate translate-context="Content/Moderation/Button/Verb">
                 Add
diff --git a/front/src/views/auth/ProfileOverview.vue b/front/src/views/auth/ProfileOverview.vue
index 39659defb..c9131a27f 100644
--- a/front/src/views/auth/ProfileOverview.vue
+++ b/front/src/views/auth/ProfileOverview.vue
@@ -125,7 +125,7 @@
           v-if="step === 2"
           :class="['ui', 'primary button', {loading: isLoading}]"
           type="submit"
-          :disabled="!submittable && !isLoading"
+          :disabled="!submittable && !isLoading || null"
           @click.prevent.stop="$refs.createForm.submit"
         >
           <translate translate-context="*/Channels/Button.Label">
diff --git a/front/src/views/channels/DetailBase.vue b/front/src/views/channels/DetailBase.vue
index 67aa374c7..ec0ab48c8 100644
--- a/front/src/views/channels/DetailBase.vue
+++ b/front/src/views/channels/DetailBase.vue
@@ -378,7 +378,7 @@
                   </button>
                   <button
                     :class="['ui', 'primary', 'confirm', {loading: edit.isLoading}, 'button']"
-                    :disabled="!edit.submittable"
+                    :disabled="!edit.submittable || null"
                     @click.stop="$refs.editForm.submit"
                   >
                     <translate translate-context="*/Channels/Button.Label">
diff --git a/front/src/views/library/DetailBase.vue b/front/src/views/library/DetailBase.vue
index 49e7b7b26..d9b993324 100644
--- a/front/src/views/library/DetailBase.vue
+++ b/front/src/views/library/DetailBase.vue
@@ -118,7 +118,7 @@
           <div class="header-buttons">
             <div class="ui small buttons">
               <radio-button
-                :disabled="!isPlayable"
+                :disabled="!isPlayable || null"
                 type="library"
                 :object-id="object.uuid"
               />