Unbounce is converting %2B to plus and then to spaces. How to prevent that?

Hi there,

We are passing a url parameter “offer_text” with a value “Receive this premier%2B offer” to an Unbounce landing page.

example:

https://dummy.com/offer?offer_text=Receive this premier%2B offer

and Unbounce form displays that in a DTR field as Receive this premier offer

It is simply converting that plus to a space.

We need to show the plus sign there.