I'm building a end to end encrypted chat platform in JS (I'm aware of the risks here it's a toy project) and I might have to use an open redirect to prevent url

I'm building a end to end encrypted chat platform in JS (I'm aware of the risks here it's a toy project) and I might have to use an open redirect to prevent urls from leaking out of messages before they are clicked. I was thinking of doing something like external-link.domain.io/redirect?url=https://www.google.com https://www.google.com to make it obvious.