What is JotForm?
JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
At JotForm, we want to make sure that you’re getting the online form builder help that you need. Our friendly customer support team is available 24/7.
We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.
This is a re-post of a comment on How to create your first web form
As an alternative to default Embed JS form code you can try an iFrame version.
If the iFrame code is being stripped too, you can simply add a link to your form, so that the form users will be redirected to the form on the JotForm site.
If you need any further assistance on this, please let us know.