How to Escape "At Sign" in Captivate Index File

I copied this from the Google fonts page and placed it in the main index file here: Adobe\Adobe Captivate 2019 x64\HTML

<link href="https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@400;700&display=swap" rel="stylesheet">

When I publish, in the href, the @ is missing in the published index, along with the text after:

<link href="https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght" rel="stylesheet">

Does anyone know why Captivate is doing this and a way to include the @ and text afterward? I tried \@ and @@. Nothing seems to work.