The changes introduced to the youtube shortcode via

• tpl/tplimpl: Fix full screen option in vimeo and youtube shortcodes #13532

toggled the default for fullscreen from true (up until v0.145.x) to false in the latest release.

If you build the attached minimal sample project this is the diff (over the prettified) HTML output of a page using the shortcode:

5c5
<   <meta name="generator" content="Hugo 0.145.0">
---
>   <meta name="generator" content="Hugo 0.146.7">
14d13
<         allowfullscreen="allowfullscreen"

Notice that the allowfullscreen attribute is gone in v0.146. We should be seeing the addition of allow="fullscreen; ...". Can we recover the old default?

📎 Test project: hugo-youtube-demo.zip (updated)