2 files changed, 21 insertions, 4 deletions

diff --git a/client/src/app/+admin/config/edit-custom-config/edit-custom-config.component.html b/client/src/app/+admin/config/edit-custom-config/edit-custom-config.component.html
index 1e5308531..97900e523 100644
--- a/client/src/app/+admin/config/edit-custom-config/edit-custom-config.component.html
+++ b/client/src/app/+admin/config/edit-custom-config/edit-custom-config.component.html
@@ -206,15 +206,17 @@ Check this checkbox, save the configuration and test with a video URL of your in
         </div>
       </ng-template>
 
-      <div i18n class="inner-form-title">Cache</div>
+      <div i18n class="inner-form-title">
+        Cache
 
-      <div class="form-group">
-        <label i18n for="cachePreviewsSize">Previews cache size</label>
         <my-help
           helpType="custom" i18n-customHtml
-          customHtml="Previews are not federated. We fetch them directly from the origin instance and cache them."
+          customHtml="Some files are not federated (previews, captions). We fetch them directly from the origin instance and cache them."
         ></my-help>
+      </div>
 
+      <div class="form-group">
+        <label i18n for="cachePreviewsSize">Previews cache size</label>
         <input
           type="text" id="cachePreviewsSize"
           formControlName="cachePreviewsSize" [ngClass]="{ 'input-error': formErrors['cachePreviewsSize'] }"
@@ -224,6 +226,17 @@ Check this checkbox, save the configuration and test with a video URL of your in
         </div>
       </div>
 
+      <div class="form-group">
+        <label i18n for="cachePreviewsSize">Video captions cache size</label>
+        <input
+          type="text" id="cacheCaptionsSize"
+          formControlName="cacheCaptionsSize" [ngClass]="{ 'input-error': formErrors['cacheCaptionsSize'] }"
+        >
+        <div *ngIf="formErrors.cacheCaptionsSize" class="form-error">
+          {{ formErrors.cacheCaptionsSize }}
+        </div>
+      </div>
+
       <div i18n class="inner-form-title">Customizations</div>
 
       <div class="form-group">
diff --git a/client/src/app/+admin/config/edit-custom-config/edit-custom-config.component.ts b/client/src/app/+admin/config/edit-custom-config/edit-custom-config.component.ts
index 7b3e72803..8d476393f 100644
--- a/client/src/app/+admin/config/edit-custom-config/edit-custom-config.component.ts
+++ b/client/src/app/+admin/config/edit-custom-config/edit-custom-config.component.ts
@@ -67,6 +67,7 @@ export class EditCustomConfigComponent extends FormReactive implements OnInit {
       servicesTwitterUsername: this.customConfigValidatorsService.SERVICES_TWITTER_USERNAME,
       servicesTwitterWhitelisted: null,
       cachePreviewsSize: this.customConfigValidatorsService.CACHE_PREVIEWS_SIZE,
+      cacheCaptionsSize: this.customConfigValidatorsService.CACHE_CAPTIONS_SIZE,
       signupEnabled: null,
       signupLimit: this.customConfigValidatorsService.SIGNUP_LIMIT,
       adminEmail: this.customConfigValidatorsService.ADMIN_EMAIL,
@@ -156,6 +157,9 @@ export class EditCustomConfigComponent extends FormReactive implements OnInit {
       cache: {
         previews: {
           size: this.form.value['cachePreviewsSize']
+        },
+        captions: {
+          size: this.form.value['cacheCaptionsSize']
         }
       },
       signup: {