FEATURE: Whitelist the `allowfullscreen` iframe attribute (#8086)

FEATURE: Whitelist the allowfullscreen iframe attribute (#8086)

Adding this to core allows showing the fullscreen button on external iframe videos like Vimeo. Full screen videos plugin - plugin - Discourse Meta will not be needed anymore.

diff --git a/app/assets/javascripts/pretty-text/white-lister.js.es6 b/app/assets/javascripts/pretty-text/white-lister.js.es6
index 40918c4..5ea1093 100644
--- a/app/assets/javascripts/pretty-text/white-lister.js.es6
+++ b/app/assets/javascripts/pretty-text/white-lister.js.es6
@@ -167,6 +167,7 @@ const DEFAULT_LIST = [
   "iframe[marginheight]",
   "iframe[marginwidth]",
   "iframe[width]",
+  "iframe[allowfullscreen]",
   "img[alt]",
   "img[height]",
   "img[title]",

GitHub sha: d93586c6

This commit has been mentioned on Discourse Meta. There might be relevant details there:

This commit has been mentioned on Discourse Meta. There might be relevant details there: