diff --git a/addons/website/static/src/js/content/snippets.animation.js b/addons/website/static/src/js/content/snippets.animation.js
index 2aa3b87c268..7ddac887fcf 100644
--- a/addons/website/static/src/js/content/snippets.animation.js
+++ b/addons/website/static/src/js/content/snippets.animation.js
@@ -686,7 +686,10 @@ registry.mediaVideo = publicWidget.Widget.extend(MobileYoutubeAutoplayMixin, {
             iframeEl = this._generateIframe();
         }
 
-        if (!iframeEl) {
+        // We don't want to cause an error that would prevent entering edit mode
+        // if there is an iframe that doesn't have a src (this was possible for
+        // a while with the media dialog).
+        if (!iframeEl || !iframeEl.getAttribute('src')) {
             // Something went wrong: no iframe is present in the DOM and the
             // widget was unable to create one on the fly.
             return Promise.all(proms);