Version 9.1.257 (28 September 2026)

Ruleset Management
Enable YouTube embeds in the rich text editor (#153294)
Problem
Unable to embed YouTube videos in widgets and help files
 
Solution
This update broadens the Content-Security-Policy to allow YouTube iframe sources and disables the Syncfusion HTML sanitiser in the rich text editor so embedded video content can load without CSP blocking.
It preserves the existing allowances for app assets and Syncfusion resources while enabling video embeds in editor content.