Facebook fbclid pollution -- can it be prevented?

I’ve sort of solved it now by using Cloudflare. I have turned off the Cloudflare page rule for a while if you want to see the 404 happening.

Try this link as an example:

https://fortmactech.com/riverbreak?fbclid=IwAR1E9PoBxuWURZRJlA4D0VrnESbfjGfC2xKuvVJzCRUmIJy7ZRKMkkH8I-U

 

I added it like this in admin / settings / permalinks:

Screen Shot 2021-04-14 at 10.30.21 AM

 

This is what it looks like once it’s added:

 

 

And the result is this:

 

I’ve tried with a trailing slash as well.

If I do the Cloudflare Page Rule to remove the fbclid stuff before it hits Discourse, then it works just fine.

Is this what the Discourse “Permalinks Normalization” is for? Would I be able to strip out anything after ? using that setting?