Link to pre-fill "add a new idea" idea portal page with certain category

Problem:  We are expecting to use a great deal of categories for ideas (large amount of products).  To make it easier for product teams to get the feedback they need, they would like to provide a link from their product directly into the "Add a new idea" page with their certain product filled out so they make sure the customer's idea is going to the right place.

Request:  A way to link directly from a certain product page straight into an "add a new idea" with the category already filled out.

Proposed Solution: I was thinking we could do this with http headers. For example, "https://mycompany.ideas.aha.io/new&category=mobile". Nope. I searched big.ideas and did not find anything or anything related either. So is there another way the idea portals can open the "add a new idea" page with a category pre-filled out?