{"section":"known-issues","requestedLocale":"en","requestedSlug":"boolean-videoaudio-html-properties-not-being-validated-on-legacy-cms","locale":"en","slug":"boolean-videoaudio-html-properties-not-being-validated-on-legacy-cms","path":"docs/en/known-issues/Portal/boolean-videoaudio-html-properties-not-being-validated-on-legacy-cms.md","branch":"main","content":"## Summary\n\n\n\nIf you attempt to use Video/Audio optional Attributes in the CMS HTML input box that are boolean types that do not use the \"=\" expression, the CMS validation will incorrectly prompt a save error and stop the user from using this kind of HTML functionality. Some examples are the attributes autoplay, controls, loop, and muted.\n\n\n\n## Simulation\n\n\n1) Go to the legacy CMS application\n2) Create a new HTML template\n3) Insert a valid HTML tag that contains the autoplay attribute, for example:\n\n`<video controls loop>`\n`<source src=\"movie.mp4\" type=\"video/mp4\">`\n`<source src=\"movie.ogg\" type=\"video/ogg\">`\n`  Your browser does not support the video tag.`\n`</video>`\n\n4) An error will be prompted to the user.\n\n\n\n\n## Workaround\n\n\nUse a javascript with the HTMLMediaElement.loop property instead, generating the same end effect."}