Recently we released a new embedded JS api for document signing at DocuSeal. Instead of doing it via iframe we decided to provide a JS-based solution.
Here are some benefits over iframe:
- faster load speed
- easy to customize
- optimized on different screen sizes
Also there is a React components library which also works with SSR Next.js https://github.com/docusealco/docuseal-react
Looking for some feedback and would be happy to answer any questions.
Basically instead of using JS snippet for mounting the UI - we're using a custom web element so it can be embedded just with HTML tag without JS.
You still need a script tag either way it seems.