Currently this cannot be done due to security reasons.
As an alternative, you may wish to create an online form using a third party website such as Formstack or Typeform and embed the form URL into an iFrame module within your design.
The online form will then display in a pop-up box within your issue.
Please note: if you use a third party website to create your online form, PageTiger are not responsible for the content, nor do they store the data captured. PageTiger are not affiliated with these websites in any way.