diff --git a/app/javascript/flavours/glitch/components/media_gallery.js b/app/javascript/flavours/glitch/components/media_gallery.js
index 1fa25ee4e..28af21812 100644
--- a/app/javascript/flavours/glitch/components/media_gallery.js
+++ b/app/javascript/flavours/glitch/components/media_gallery.js
@@ -238,7 +238,8 @@ export default class MediaGallery extends React.PureComponent {
   };
 
   componentWillReceiveProps (nextProps) {
-    if (!is(nextProps.media, this.props.media)) {
+    console.log(nextProps.revealed);
+    if (!is(nextProps.media, this.props.media) || nextProps.revealed === true) {
       this.setState({ visible: nextProps.revealed === undefined ? (displayMedia !== 'hide_all' && !nextProps.sensitive || displayMedia === 'show_all') : nextProps.revealed });
     }
   }
diff --git a/app/javascript/flavours/glitch/components/status.js b/app/javascript/flavours/glitch/components/status.js
index 31f4f1ddd..c8bf75f79 100644
--- a/app/javascript/flavours/glitch/components/status.js
+++ b/app/javascript/flavours/glitch/components/status.js
@@ -466,6 +466,7 @@ export default class Status extends ImmutablePureComponent {
               onOpenVideo={this.handleOpenVideo}
               width={this.props.cachedMediaWidth}
               cacheWidth={this.props.cacheMediaWidth}
+              revealed={settings.getIn(['media', 'reveal_behind_cw']) && !!status.get('spoiler_text') ? true : undefined}
             />)}
           </Bundle>
         );
@@ -483,6 +484,7 @@ export default class Status extends ImmutablePureComponent {
                 onOpenMedia={this.props.onOpenMedia}
                 cacheWidth={this.props.cacheMediaWidth}
                 defaultWidth={this.props.cachedMediaWidth}
+                revealed={settings.getIn(['media', 'reveal_behind_cw']) && !!status.get('spoiler_text') ? true : undefined}
               />
             )}
           </Bundle>
diff --git a/app/javascript/flavours/glitch/features/local_settings/page/index.js b/app/javascript/flavours/glitch/features/local_settings/page/index.js
index 4535d9849..bc4ad359c 100644
--- a/app/javascript/flavours/glitch/features/local_settings/page/index.js
+++ b/app/javascript/flavours/glitch/features/local_settings/page/index.js
@@ -328,6 +328,14 @@ export default class LocalSettingsPage extends React.PureComponent {
         >
           <FormattedMessage id='settings.inline_preview_cards' defaultMessage='Inline preview cards for external links' />
         </LocalSettingsPageItem>
+        <LocalSettingsPageItem
+          settings={settings}
+          item={['media', 'reveal_behind_cw']}
+          id='mastodon-settings--reveal-behind-cw'
+          onChange={onChange}
+        >
+          <FormattedMessage id='settings.media_reveal_behind_cw' defaultMessage='Reveal sensitive media behind a CW by default' />
+        </LocalSettingsPageItem>
       </div>
     ),
   ];
diff --git a/app/javascript/flavours/glitch/features/status/components/detailed_status.js b/app/javascript/flavours/glitch/features/status/components/detailed_status.js
index ad60320ef..373532e20 100644
--- a/app/javascript/flavours/glitch/features/status/components/detailed_status.js
+++ b/app/javascript/flavours/glitch/features/status/components/detailed_status.js
@@ -138,6 +138,7 @@ export default class DetailedStatus extends ImmutablePureComponent {
             preventPlayback={!expanded}
             onOpenVideo={this.handleOpenVideo}
             autoplay
+            revealed={settings.getIn(['media', 'reveal_behind_cw']) && !!status.get('spoiler_text') ? true : undefined}
           />
         );
         mediaIcon = 'video-camera';
@@ -151,6 +152,7 @@ export default class DetailedStatus extends ImmutablePureComponent {
             fullwidth={settings.getIn(['media', 'fullwidth'])}
             hidden={!expanded}
             onOpenMedia={this.props.onOpenMedia}
+            revealed={settings.getIn(['media', 'reveal_behind_cw']) && !!status.get('spoiler_text') ? true : undefined}
           />
         );
         mediaIcon = 'picture-o';
diff --git a/app/javascript/flavours/glitch/features/video/index.js b/app/javascript/flavours/glitch/features/video/index.js
index cf66536c4..e3ed799c7 100644
--- a/app/javascript/flavours/glitch/features/video/index.js
+++ b/app/javascript/flavours/glitch/features/video/index.js
@@ -119,6 +119,12 @@ export default class Video extends React.PureComponent {
     revealed: this.props.revealed === undefined ? (displayMedia !== 'hide_all' && !this.props.sensitive || displayMedia === 'show_all') : this.props.revealed,
   };
 
+  componentWillReceiveProps (nextProps) {
+    if (nextProps.revealed === true) {
+      this.setState({ revealed: true });
+    }
+  }
+
   // hard coded in components.scss
   // any way to get ::before values programatically?
   volWidth = 50;
diff --git a/app/javascript/flavours/glitch/reducers/local_settings.js b/app/javascript/flavours/glitch/reducers/local_settings.js
index 93a404328..ef694d4ea 100644
--- a/app/javascript/flavours/glitch/reducers/local_settings.js
+++ b/app/javascript/flavours/glitch/reducers/local_settings.js
@@ -39,8 +39,9 @@ const initialState = ImmutableMap({
     show_action_bar : true,
   }),
   media     : ImmutableMap({
-    letterbox   : true,
-    fullwidth   : true,
+    letterbox        : true,
+    fullwidth        : true,
+    reveal_behind_cw : false,
   }),
   notifications : ImmutableMap({
     favicon_badge : false,