diff --git a/addons/website/static/src/client_actions/website_preview/website_preview.js b/addons/website/static/src/client_actions/website_preview/website_preview.js
index 9d264cb0814a94be121a6a85b7c9db4a102cb1eb..d40b77ebedbdff95fa8afd250adb4db761772bd7 100644
--- a/addons/website/static/src/client_actions/website_preview/website_preview.js
+++ b/addons/website/static/src/client_actions/website_preview/website_preview.js
@@ -431,9 +431,9 @@ export class WebsitePreview extends Component {
      * the iframefallback content.
      */
     _cleanIframeFallback() {
-        // Remove autoplay in all media video iframes urls so videos are not
+        // Remove autoplay in all iframes urls so videos are not
         // playing in the background
-        const iframesEl = this.iframefallback.el.contentDocument.querySelectorAll(".media_iframe_video iframe");
+        const iframesEl = this.iframefallback.el.contentDocument.querySelectorAll("iframe");
         for (const iframeEl of iframesEl) {
             const url = new URL(iframeEl.src);
             url.searchParams.delete('autoplay');
diff --git a/addons/website_slides/static/src/client_actions/website_preview/website_preview.js b/addons/website_slides/static/src/client_actions/website_preview/website_preview.js
index 8b53487dd8bc721214c7688946f5dbe01ff869c3..1b81174c9e646a12bf9c9521afab601b3ef227fb 100644
--- a/addons/website_slides/static/src/client_actions/website_preview/website_preview.js
+++ b/addons/website_slides/static/src/client_actions/website_preview/website_preview.js
@@ -5,17 +5,11 @@ import { WebsitePreview } from '@website/client_actions/website_preview/website_
 
 patch(WebsitePreview.prototype, 'website_slides_website_preview', {
     /**
+     * @todo remove me in master, the cleaning of iframe is now done
+     * globally in the website part
      * @override
      */
     _cleanIframeFallback() {
-        // Remove autoplay in all youtube videos urls so videos are not playing
-        // in the background
-        const playersEl = this.iframefallback.el.contentDocument.querySelectorAll('[id^=youtube-player]');
-        for (const playerEl of playersEl) {
-            const url = new URL(playerEl.src);
-            url.searchParams.delete('autoplay');
-            playerEl.src = url.toString();
-        }
         return this._super(...arguments);
     }
 });